Foods to eat when you have Hypoglycemia

Guide To Beating Hypoglycemia

Here's Just A Tiny Glimpse Of The Topics Covered: The 3 main types of hypoglycemia and which type you're most likely suffering from. How snacking on chocolate bars can actually make you Fat and worsen your condition! (If you thought those delicious dark brown bars were great energy- boosters.think again!) The No. 1 question most folks have when it comes to hypoglycemia and hyperglycemia. Why you should insist on a 6-hour Gtt and not a 5-hour one. ( Why it might not be a good idea to consult a doctor to confirm your hypoglycemia. Aside from taking a Gtt, what other methods can you use to determine whether or not you're suffering from this condition? Well, refer Chapter 4, Pgs. 23-26 to take a revealing 67-question test especially designed to find out if you've got the symptoms. An inspiring motivational exercise that will help you effectively banish all of your negative thoughts that prevent you from having peace of mind. 2 good reasons why you should keep a food journal. 3 powerful nutrients that limit the effect of glucose on your blood sugar level. This is vital to a hypoglycemic as it helps slow down the absorption of sugar in the food. The secret impulse that literally forces you to say 'yes' to a candy bar or chocolate whenever you feel the hunger pangs gnawing at you. 2 ingredients that are lethal to a hypoglycemic. 'Hidden sugars' you must know to avoid buying products that can easily worsen your condition. 8 essential rules of food planning that are crucial to your speedy recovery from hypoglycemia. Leave out one of them and it could hurt your chances of recovering. How to create a healthy food plan that's suitable for both vegetarian and non- vegetarian hypoglycemics. Most food plans only focus on non-vegetarians, but this one works great for everybody! Read more...

Guide To Beating Hypoglycemia Overview

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Hypoglycemic Alert Dogs

Assistance dogs for people who are blind, deaf, or have other physical challenges have become a familiar addition to the range of tools that help them live safely. Now, some dogs are being trained to help people with diabetes avoid the danger of low blood sugar. Especially for very young children or people afraid of becoming hypoglycemic without realizing it, these amazing dogs are proving their worth. These hypoglycemic-alert dogs cost at least twenty thousand dollars, and the training of dog and client takes about two years.

Oral Hypoglycemic Pills and Illness

If you take oral hypoglycemic pills, you must watch for signs of low blood sugar during any illness that causes you to vomit or keeps you from eating and drinking normally. The hypoglycemic pills you took before your illness continue working to lower your blood sugar even when you do not increase it by taking in food. Try to replace missing carbohydrates by eating soup, crackers, or toast, or by drinking ginger ale or cola.

Symptoms Of Hypoglycemia

For most adults with T1DM, hypoglycemia is an unfortunate fact of life (1-6). Those attempting to achieve better glycemic control suffer many episodes of mild-to-moderate hypoglycemia. Early detection and recognition of hypoglycemic symptoms is critical for the individual to self-treat the hypoglycemic episode before becoming disabled. The two categories of hypoglycemic symptoms are neurogenic and neuroglycopenic. The neurogenic symptoms are activated by the ANS (usually occur at 60 mg dL in nondiabetic individuals) and are mediated in part by sympathoadrenal release of cate-cholamines (norepinephrine and epinephrine) from the adrenal medullae and acetylcholine from postsynaptic sympathetic nerve endings (7-9). These symptoms are triggered by a falling glucose. This defense is critical for the recognition of symptoms that will alert the individual to treat the hypoglycemic episode. Neurogenic signs and symptoms include shakiness, anxiety, nervousness, palpitations, sweating, dry mouth...

Counterregulatory Hormone Responses To Hypoglycemia In Older Adults

Insulin therapy is often problematic for older adults with T1DM and the risk of severe or fatal hypoglycemia associated with the use of insulin increases exponentially with age (44,45). Older adults using multiple medications are likely to have comorbidities and those who are frequently hospitalized are at greater risk for iatrogenic hypoglycemia (46). Meneilly et al. (44) investigated the effects of age on counterregulatory responses during hyperinsulinemic hypoglycemic clamp studies. They reported that older adults with diabetes had reduced glucagon and growth hormone responses during hypoglycemia, but reported increased epinephrine and cortisol responses when compared to age matched nondiabetic controls. Even with this mixed review, hypoglycemic symptom scores were similar in both the groups at all levels of glycemia (44). Matyka et al. (46), on the other hand, found differences in hypoglycemic symptom responses when comparing healthy older men, aged 60 to 70, with younger men,...

Avoiding Hypoglycemia

The elderly, who are already somewhat frail, are especially hard-hit by the consequences of hypoglycemia and are especially prone to it because of several factors In addition, their mental state may not permit them to recognize when they are becoming hypoglycemic. Intensive diabetes treatment may not be possible when hypoglycemia is a frequent problem. Using medications properly, as I discuss in the next section, is essential to helping avoid hypoglycemia. The hemoglobin A1c goal for healthy elderly adults is 7 percent. However, if the life expectancy is less than 5 years, the elderly person is frail or the risks of intensive therapy outweigh the benefits, the goal is 8 percent. This decreased level of control will help to avoid hypoglycemia.

Counterregulatory Hormone Responses To Hypoglycemia In Women

There is a large sexual dimorphism in counterregulatory responses to hypoglycemia. It has been clearly demonstrated that both healthy young men and women with T1DM have reduced neuroendocrine, ANS, and EGP as compared to age and body mass indexed matched men (39-43). Davis et al. (2000) (43) illustrated that healthy and T1DM women have lower catecholamine, glucagon, cortisol, growth hormone, EGP, and lactate responses compared to age and BMI matched men. On the other hand, women have increased lipolytic responses to hypoglycemia. This sexual dimorphism also occurs during exercise and is not due to differences in glycemic thresholds for activation of counterregulatory responses (43) (Fig. 5). In a series of separate glucose clamp studies at glycemic targets of 90, 70, and 50 mg dL, Davis et al. (2000) (41) demonstrated that reduced central nervous system drive is responsible for the sexual dimorphic responses to hypoglycemia occurring in women. In a subsequent study, Sandoval et al....

Treatment Of Hypoglycemia

Obviously, prevention of iatrogenic hypoglycemia, as just discussed, is preferable to treatment of hypoglycemia. Episodes of asymptomatic hypoglycemia (detected by self-monitoring of blood glucose) and most episodes of mild to moderate symptomatic hypoglycemia, are effectively self-treated by ingestion of glucose tablets or carbohydrate in the form of juices, soft drinks, milk, crackers, candy or a meal. A glucose dose of 20 g is reasonable (26). However, in the setting of ongoing hyperinsulinemia, the glycemic response to oral glucose is transient, typically < 2 hours (26). Therefore, ingestion of a snack or meal shortly after the glucose level is raised is generally advisable. Parenteral treatment is necessary when a hypoglycemic patient is unable or unwilling (because of neuroglycopenia) to take carbohydrate orally. While subcutaneous or intramuscular glucagon (1.0 mg in adults) is often used, by family members, to treat hypoglycemia in type 1 diabetes, glucagon is less useful in...

Intensive diabetes management means Ill have more hypoglycemic reactions

This, unfortunately, turns out to be true. When you've worked out a plan that narrows your range of blood glucose highs and lows, you're always closer to low than you were on standard diabetes therapy. Your room for error becomes much narrower. This doesn't mean you need to avoid intensive management, however, unless hypoglycemic reactions would aggravate other health conditions. You need to become an expert at telling when to pull out the meter and do a test and treat your hypoglycemia. The secret to keeping hypoglycemia from turning you away from intensive management is to prevent severe reactions. Act early, think clearly, and avoid letting your low level go so low that you need help to treat it. Here's a sample chart for treating hypoglycemia. It's based on your blood glucose result. This chart gives an average in general, each 5 grams of carbohydrate raises blood glucose about 15 mg dl. After treating, your blood glucose goal is about 120 mg dl. You'll need to figure out how much...

Avoidance of Daytime Hypoglycemia

Good hypoglycemia awareness is the best defense against a severe episode of hypo-glycemia. Hypoglycemia awareness can be recovered by strict avoidance of hypo-glycemia (77). Intensive patient education can lead to improved self-management behavior and, thus, it is likely that some episodes of hypoglycemia may be avoided by a rigorous educational approach (144). One group was able to reduce HbA1c concentrations with a positive decrement in episodic severe hypoglycemia by virtue of a structured intensive teaching program, focusing on patient insulin adjustment (145). Regular snacking between meals may be necessary to reduce hypoglycemic excursions after meals, while allowing sufficient prandial insulin to be given to control the immediate postprandial blood glucose concentrations and maintain a near-normal HbA1c (146). There is also some early evidence to indicate that replacement of basal insulin by twice-daily isophane insulin may be beneficial, at least in adults, perhaps by reducing...

Driving and Hypoglycemia

Some of the medicines used to treat diabetes (insulin, sulfonylureas, repaglinide, and nateglinide) can cause hypoglycemia, which can affect reflexes and judgment. In addition, long-term diabetes complications, especially vision problems and neuropathy, may interfere with driving ability. There have been a number of research studies that have looked at the impact of diabetes on car accidents. Generally speaking, the impact appears to be modest if it exists at all. It does seem that the risk for future car accidents is increased if there has been a recent episode of severe hypoglycemia, hypoglycemic unawareness, or a history of past crashes. Hypoglycemia, or low glucose reactions, can occur in people with both type 1 diabetes and type 2 diabetes. Hypoglycemia occurs principally because of To prevent hypoglycemia Be vigilant for symptoms of hypoglycemia Treat hypoglycemic reactions with fast-acting carbohydrates such as juice or glucose tablets. Family members and colleagues should know...

Adjusting for Hypoglycemia

In evaluating episodes of hypoglycemia, one must first establish whether the lows are explained or unexplained as this will impact whether or not insulin doses need to be adjusted as the corrective action of choice. An exploration of variables that may be causing the hypoglycemia should be undertaken. Is the hypoglycemia explained by a decreased food intake, e.g., skipped meal or bedtime snack an increase in the number of insulin doses taken, e.g., serial correction doses to treat a high an increase in the number of units of insulin taken in a dose, e.g., a large correction dose or by an increase in physical activity If the explanation was an isolated occurrence, then the corrective action is to try and avoid the circumstances that caused it, e.g., to carry a snack when it is likely a meal will be skipped. If it is known that the explanation is going to be an ongoing phenomenon, e.g., beginning of an effort to lose weight through a cut in caloric intake or initiation of a regular...

Oral Hypoglycemic Agents

Oral hypoglycemic agents are not approved or recommended in the US for treatment of GDM. Older sulfonylureas, such as tolbutamide and chlorpropramide, cross the placenta and cause fetal hyperinsulinemia and macrosomia. They also have the potential to cause prolonged neonatal hypoglycemia. Minimal amounts of glyburide, however, cross the placenta (97). In a study of 404 women with mild GDM randomly assigned to receive either glyburide or insulin, the results demonstrated that the groups achieved similar glycemic control, with no differences in the frequency of macrosomia, neonatal hypoglycemia, and neonatal morbidity, or cord insulin concentration levels, between groups (98,99). The mean blood glucose was 105 mg dL in both groups. A number of other studies have described the use of glyburide in pregnancy (100-105). Though the results have been promising, more safety and efficacy data are needed before further recommendations can be made.

Understanding hypoglycemic unaWareness

If your child suffers from hypoglycemic unawareness, he doesn't feel the warning adrenergic symptoms that alert him that his blood glucose is too low. He may have a reduced or no adrenaline response as well as a reduced cortisol and growth hormone response this means that nothing is raising his blood glucose as it falls. Without the warnings of palpitations, anxiety, and hunger, Hypoglycemic unawareness occurs in about 25 percent of patients with T1DM. The occurrence of severe hypoglycemia is much more frequent in these patients than in those without the unawareness. It occurs more often when one of these risk factors is present Many years of diabetes Very tight control of the blood glucose Frequent and repeated hypoglycemia In order to deal with these frequent and severe hypoglycemic reactions, it may be necessary to allow the blood glucose to be higher than levels that prevent long-term complications, greater than 150 mg dl, for example. The risk is that long-term complications are...

Confusion Between Hypoglycemia and Intoxication

Intoxication in young people, whether from alcohol or drugs, is so common in many societies that people not knowing the youth with diabetes (and even those that do) may assume that he or she is intoxicated if they are showing dysfunctional behavior or diminished consciousness. This is particularly a risk if the young person has had some alcohol or is thought to use hallucinogenic or sedative drugs such as cannabis or LSD. Friends or family may let them sleep it off, endangering them further if, in fact, they are hypoglycemic. This risk further reinforces the advice to young diabetics that they should inform their friends about their diabetes and what to do if they may be hypoglycemic.

Potential preventive and therapeutic options Oral Hypoglycemic Agents

The effect of oral hypoglycemic agents on endothelial function is controversial and probably relates to the agent and model of diabetes being evaluated. Metformin has been shown to improve endothelium-dependent function in the mesenteric arteries of insulin-resistant rats in vitro (165), and the ATP-dependent potassium channel blocker gliclazide ameliorated endothelium-dependent relaxation of the aortas of (alloxan-induced) diabetic rabbits (166). However, clinical studies evaluating the effect of oral hypoglycemics on endothelial function have shown either no difference (167) or diminished reactivity to acetylcholine once the agent is discontinued (120).

Frequency Of Hypoglycemia

Hypoglycemia is a fact of life for most people with established (i.e., C-peptide negative) type 1 diabetes (5,6). Those attempting to achieve some degree of glycemic control suffer untold numbers of episodes of asymptomatic hypoglycemia plasma glucose concentrations may be < 50mg dL (2.8mmol L) 10 of the time. They suffer an average of two episodes of symptomatic hypoglycemia per week thousands over a lifetime of diabetes and episodes of severe, at least temporarily disabling hypoglycemia approximately once a year (Table 1). Indeed, an estimated 2 to 4 of deaths of people with type 1 diabetes have been attributed to hypoglycemia. Over a lifetime of diabetes, the incidence of iatrogenic hypoglycemia is considerably lower in type 2 diabetes than in type 1 diabetes. As discussed later, this likely reflects intact defenses against falling plasma glucose concentrations early in the course of the disease. Ascertainment of hypoglycemia is a challenge. Asymptomatic episodes will be missed...

Hypoglycemia Unawareness

Some people lose the ability to know when their blood glucose level has fallen to a dangerous level. They are missing the early warning signs of hypoglycemia. For them, the first symptom of low blood glucose can be impaired thinking. Hypoglycemia unawareness seems to occur more often in people who intensively manage their blood glucose. It is common in pregnant women. There is some evidence that frequent bouts of low blood glucose can bring on hypoglycemia unawareness. Avoiding even mild hypoglycemia can help restore awareness of symptoms. Sometimes this means increasing blood glucose goals to higher numbers. If you or your health care team suspect that you have hypoglycemia unawareness, you need to establish some safety nets Discuss your hypoglycemic episodes with your health care team so you can look for patterns to use as warning cues. Educate more of the people you're with every day about hypoglycemia and how to help you. Some people have a hard time detecting oncoming...

Exerciserelated Hypoglycemia

Exercise has numerous therapeutic benefits. Physical activity improves insulin sensitivity helps maintain body weight, and can reduce postprandial hyperglycemia. However, despite these and numerous other benefits, exercise often results in hypoglycemia in adults with T1DM. Counterregulatory hormones are activated during exercise in a similar fashion to hypoglycemia. However, norepinephrine levels are higher and epinephrine levels are lower during exercise as compared to hypoglycemia. Nevertheless, the metabolic role of counterregulatory hormones during exercise is to allow the individual to match glucose production to the needs of the working muscles. Therefore, neuroendocrine mechanisms are invoked to stimulate EGP, while simultaneously limiting glucose uptake in muscles. If glucose production cannot match glucose uptake then hypoglycemia will develop. Until recently, the mechanisms responsible for exercise-associated hypoglycemia in T1DM were thought to be due to a relative or...

Preventing Hypoglycemia

As you aim to get HbA1c levels (see Chapter 5) close to normal, the risk of hypoglycemia goes up. You can take the following measures to limit the risk Set realistic targets aim to keep premeal glucose levels between 90 and 130 rather than at 80. Also, if you have recently had a severe hypoglycemic reaction, then for about six weeks aim to keep your glucose around 150. This will help you recover your ability to sense hypoglycemia to some degree. Recognize behaviors that increase the risk of hypoglycemia and take steps to avoid them for example, adjust the insulin for exercise, and drink alcohol in moderation and with food. Monitor blood glucose levels frequently, especially if you have type 1 diabetes. You cannot achieve optimal glucose control with two or three checks a day. For tight control, check your blood glucose levels eight to twelve times a day (before meals and snacks, at bedtime, at 2 a.m., before and after exercise, before driving, and when you have symptoms of...

Levels of hypoglycemia

There are three levels of severity of hypoglycemia, defined by the level of the blood glucose 1 Mild hypoglycemia This level, corresponding to a blood glucose of around 75 mg dl, is easily treated by the patient himself. It does not cause the patient to change his routine and, in fact, is discovered not so much by symptoms as by the finding of a low blood glucose during routine testing of the blood. 1 Moderate hypoglycemia This level is achieved when the blood glucose is found to be around 65 mg dl. The patient begins to feel the adrenergic symptoms described above, especially anxiety and a rapid heartbeat. Patients who have moderate hypoglycemia may not recognize they need glucose and have to be helped by someone else. 1 Severe hypoglycemia This level occurs when the blood glucose is less than 55 mg dl leaving the patient severely impaired and thus requiring outside assistance to restore his or her glucose. An emergency injection of glucagon or intravenous glucose solution is...

What you need to know about low blood glucose hypoglycemia

(( Tell your doctor if you have hypoglycemia often, especially at the same time of the day or night several times in a row. < K Tell your doctor if you've passed out from hypoglycemia. (( Ask your doctor about glucagon. Glucagon is a medicine that raises blood glucose. If you pass out from hypoglycemia, someone should call 911 and give you a glucagon shot. Hypoglycemia happens if your blood glucose drops too low. It can come on fast. It's caused by taking too much diabetes medicine, missing a meal, delaying a meal, exercising more than usual, or drinking alcoholic beverages. Sometimes, medicines you take for other health problems can cause blood glucose to drop. Hypoglycemia can make you feel weak, confused, irritable, hungry, or tired. You may sweat a lot or get a headache. You may feel shaky. If your blood glucose drops lower, you could pass out or have a seizure. CC Tell your doctor if you have hypoglycemia often, especially at the same time of the day or night several times in a...

Clinical Diagnosis Of Hypoglycemia

It is not possible to specify a plasma glucose concentration that defines clinical hypoglycemia in people with diabetes because the glycemic thresholds for the manifestations of hypoglycemia shift to higher than normal glucose levels in poorly controlled diabetes and lower than normal glucose levels in well controlled diabetes. The diagnosis is made most convincingly by Whipple's triad symptoms consistent with hypoglycemia, a low plasma glucose concentration and relief of those symptoms after the plasma glucose concentrations is raised to (or above) normal. Ideally, suggestive symptoms should prompt a monitor-measured glucose level to confirm that those symptoms are indicative of hypoglycemia. However, patients often self-treat on the basis of symptoms alone. On the other hand, low self-monitored glucose levels should not be ignored even in the absence of symptoms. The American Diabetes Association Workgroup on Hypoglycemia (11) recommended that people with diabetes should become...

Hypoglycemia in Type Diabetes

HYPOGLYCEMIA THE LIMITING FACTOR Comprehensive treatment, including glycemic control, makes a difference for people with diabetes. Glycemic control prevents or delays the microvascular complications retinopathy, nephropathy and neuropathy of both type 1 diabetes (1) and type 2 diabetes (2) it may also reduce macrovascular events (3,4). However, because of the imperfections of all current treatment regimens, iatrogenic hypoglycemia is the limiting factor in the glycemic management of diabetes (5). Were it not for the potentially devastating effects of hypoglycemia on the brain which requires a continuous supply of glucose from the circulation diabetes would be rather easy to treat. Enough insulin, or any effective drug, to lower plasma glucose concentrations to or below the normal range would eliminate the symptoms of hyperglycemia, prevent acute hyperglycemic complications (ketoacidosis, hyperosmolar syndrome), almost assuredly prevent the long-term microvascular complications (1,2)...

Hypoglycemia In Diabetes The Clinical Context

Glycemic control is a fundamentally important component of the comprehensive management of diabetes mellitus because it prevents or delays the long-term specific complications of diabetes (retinopathy, nephropathy, and neuropathy) and may reduce its atherosclerotic complications (1-3). However, iatrogenic hypoglycemia is the limiting factor (4,5) in the glycemic management of both T1DM (1,2,6-8) and T2DM (3,9) both conceptually and in practice. Were it not for the potentially devastating effects of hypo-glycemia, particularly on the brain, glycemic control would be rather easy to achieve. Administration of enough insulin (or any effective medication) to lower plasma glucose concentrations to or below the nondiabetic range would eliminate the symptoms of hyperglycemia, prevent diabetic ketoacidosis and the nonketotic hyperosmolar syndrome, almost assuredly prevent retinopathy, nephropathy, and neuropathy, and likely reduce atherosclerotic risk. However, the devastating effects of...

The seriousness of hypoglycemia

One of the readers who wrote to thank me for the first edition of this book told me how her son had once gone on a blind date. He and his date went to a bar where they had a drink before dinner. As he sat there, he began to say, Sugar, baby, sugar, baby, sugar, baby. At first his date was offended until she realized that he had a glazed look in his eyes and found that he was wearing a bracelet identifying him as a person with diabetes. He was suffering from hypoglycemia and needed glucose. This story is amusing, but the subject is very serious. Hypoglycemia can ruin your day and leave you feeling dazed and exhausted afterwards. You also run the risk of overtreating it, leaving yourself with a very high blood glucose. Hypoglycemia is a barrier that prevents most patients with diabetes from achieving normal blood glucose levels. They can lower their blood glucose enough to prevent long-term complications such as eye disease, kidney disease, and nerve disease, but preventing heart...

Understanding Hypoglycemia

The condition of having low blood glucose is known as hypoglycemia. If you have diabetes, you can get hypoglycemia only as a consequence of your diabetes treatment. As a person with diabetes, you're in constant combat with high blood glucose, which is responsible for most of the long-term and short-term complications of the disease. Your doctor prescribes drugs and other treatments in an effort to fine-tune your blood glucose as it would be in the body of a person who does not have diabetes. (Part III explains many techniques that help you control your blood glucose levels.) But, unfortunately, these drugs and treatments aren't always perfect. If you take too much of a drug, exercise too much, or eat too little, your blood glucose can drop to the low levels at which symptoms develop. The following sections explain more about the seriousness of hypoglycemia as well as its symptoms, causes, and treatment.

Treating Hypoglycemia

Treating hypoglycemia is fairly straightforward eat or drink any food that has a lot of glucose and is easily absorbed. Sources of glucose include glucose tablets and gels that you can buy at your pharmacy. Fruit juice and nonfat milk are also good sources. Foods with a lot of fat such as chocolate are not as good because the fat will delay the absorption of the glucose. Fructose does not raise the blood glucose, but most foods that have fructose, such as honey and fruits, also have a lot of glucose. After your hypoglycemia has been treated satisfactorily, you may want to trou-bleshoot. Think about why it happened and what you can do to avoid a similar situation in the future Does you insulin dose need to be adjusted Do you need advice from your medical team

Avoiding Exercise Induced Low Blood Glucose

You may need to eat during or after exercise if you work out hard or for a long time (an hour or more). Know that you may have a low blood glucose reaction up to 24 hours after exercising, depending on how hard and how long you exercised. If you suspect a low blood glucose reaction is coming on, stop exercising at once. Take some form of carbohydrate. Don't fool yourself into thinking you can last just 5 minutes longer. Always keep some form of glucose handy just in case you need it while exercising. This can be a soft drink or fruit juice, which will provide sugar and replace water. Or you can use glucose tablets, raisins, or hard candy. Be on the lookout for hypoglycemia not only while you are exercising, but up to 24 hours later. Keep monitoring your blood glucose levels to detect very low blood glucose. Monitoring your blood glucose levels is a great idea, even if you're not at high risk for hypoglycemia. It can be very motivating to see just how much exercise can reduce your...

Nocturnal Hypoglycemia

Nocturnal Hypoglycemia

Nocturnal hypoglycemia may be considered as the submerged part of the iceberg that constitutes hypoglycemia in insulin therapy. In a study of nocturnal glucose control in young children, episodes of hypoglycemia were observed in 45 of patients studied. The median glucose nadir was 1.9 mmol L (range 1.1-3.3) and the median duration of hypoglycemia was 270 min (range 30-630) (22). There are a number of risk factors for hypoglycemia that are specific to the night. First, the overnight period represents the longest time without food and glucose concentrations are maintained by mobilization of liver glycogen stores and, subsequently, through gluconeogenesis. Adults with diabetes studied during the course of a day during which three mixed meals were ingested were shown to synthesize only one-third of the amount of glycogen that was synthesized by nondiabetic controls (84). This may be, in part, the result of an imbalance in the portal glucagon insulin ratio, as rates of hepatic glycogen...

Preventing and treating hypoglycemia

Preventing hypoglycemia may be time-consuming, but it's possible and entirely worth the effort Even if prevention doesn't work and your child still has episodes of hypoglycemia, you can treat it in several different ways, as you find out in the following sections. Preventing hypoglycemia The best way to prevent hypoglycemia is to be constantly aware of your child's blood glucose. Meters are being developed that can measure glucose every five minutes and beep if it falls below a set level. (See Chapter 7 for more on these meters and for general information on measuring blood glucose.) Unfortunately, these meters haven't been perfected quite yet, so it's still necessary to stick your child multiple times a day in order to know his blood glucose. But even periodic testing doesn't get around the problem of not knowing your child's glucose for seven to eight hours while he sleeps (unless you set your alarm to wake you for an occasional middle-of-the-night test). When your child is asleep,...

Physiological Response To Hypoglycemia

The physiologic counterregulatory response to hypoglycemia involves neuroendocrine, ANS, and metabolic processes. This includes the suppression of insulin release as well as secretion of glucagon and pancreatic polypeptide from the pancreas, epinephrine from the adrenal medullae, norepinephrine from sympathetic postganglionic nerve terminals and adrenal medulla, cortisol from the adrenal cortex, and growth hormone from the anterior pituitary gland (11-13). In humans, inhibition of insulin secretion is the initial defense against a falling glucose and occurs at a plasma glucose concentration of about 80 mg dL. The brain is one of the first organs affected and is most vulnerable to any glucose deprivation. In adults with T1DM, insulin levels do not decrease as glucose levels fall, because of persistent absorption of exogenous insulin. The lack of decline in plasma insulin concentrations as glucose levels fall constitutes the first deficit in the defense against hypoglycemia in T1DM....

Sulfonylureas And Hypoglycemia. Bmj 1988 296 949 -50

Ben-Ami H, Nagachandran P, Mendelson A, Edoute Y (1999) Drug-induced hypoglycemic coma in 102 diabetic patients. Archives of Internal Medicine, 159, 281-284. Blackman JD, Towle VL, Stuns J, Lewis GF, Spire JP, Polonsky KS (1992) Hypoglycemic thresholds for cognitive dysfunction in IDDM. Diabetes, 41, 392-399. Burge MR, Schmitz-Fiorentino K, Fischette C, Qualls CR, Schade DS (1998) A prospective trial of risk factors for sulfonylurea-induced hypoglycemia in Type 2 diabetes mellitus. JAMA, 14, 137-143. Burge MR, Zeise TM, Sobhy TA, Rassam AG, Schade DS (1999) Low-dose ethanol predisposes elderly fasted patients with Type 2 diabetes to sulfonylurea-induced low blood glucose. Diabetes Care, 22, 2037-2043. Cryer PE (1992) Iatrogenic hypoglycemia as a cause of hypoglyce-mia-associated autonomic failure in IDDM a vicious cycle. Diabetes, 41, 255-260. Cryer PE (1993) Glucose counter-regulation prevention and correction of hypoglycemia in humans. American Journal of Physiology, 264, E149-E155....

Antecedent Hypoglycemia And Hypoglycemiaassociated Autonomic Failure

Cryer earlier coined the term hypoglycemia-associated autonomic failure (HAAF) to describe the syndrome of acquired counterregulatory deficits associated with prior hypo-glycemia. This syndrome is experienced by individuals with T1DM and involves blunted neuroendocrine counterregulatory responses to hypoglycemia, lowered glycemic thresholds for activation of counterregulatory defenses, and HU. To test the hypothesis that hypo-glycemia itself causes reduced neuroendocrine and symptomatic responses to subsequent hypoglycemia, Heller and Cryer measured counterregulatory responses during repeated hypoglycemic clamp studies (13). These experiments determined that two episodes of antecedent moderate hypoglycemia (50 mg dL) resulted in significant reductions of plasma epinephrine, glucagon, pancreatic polypeptide, and cortisol responses to next day hypo-glycemia. Neurogenic and neuroglycopenic symptom responses were also reduced after antecedent hypoglycemia (13). Importantly, Dagogo-Jack et...

Cgm Trend Data Used To Minimize Postprandial Hyperglycemia And Avoid Hypoglycemia

Insulin Pump Catheter

Patients use the real-time glucose trend data displayed on the hand-held CGM monitor to make more appropriate clinical decisions regarding BG control (20,22,23). The Food and Drug Administration (FDA), however, does not currently allow the patient with diabetes to initiate a change in medical therapy (insulin or oral hypoglycemia medication) based solely upon CGM glucose sensor data. Diabetic patient are therefore required to adjust drug therapy according to traditional SMBG measurements. This limitation was imposed by the FDA to prevent the unsafe administration of insulin, due to the potential for inaccurate CGM sensor data (www.fda.gov). However, patients given real-time access to CGM glucose sensor information have quickly learned to utilize the trend data to minimize postprandial hyperglycemia and avoid hypoglycemia. Most patients have not required extensive education to utilize the real-time BG data safely and effectively (22-24). In a randomized, prospective clinical trial...

Avoidance of Nocturnal Hypoglycemia

Most of the studies investigating hypoglycemia prevention have focused on nocturnal hypoglycemia. There have been a number of studies examining the effect of dietary intervention on the prevalence of nocturnal hypoglycemia. Most of these studies have involved the manipulation of the bedtime snack with uncooked cornstarch being used to provide part of the carbohydrate load. The beneficial effects have been variable. Some studies found a decrease in the rate of nocturnal hypoglycemia, but these studies only looked at one or two glucose concentrations overnight (150,151) or relied on self-reporting of overnight hypoglycemia (152). Other studies have found cornstarch to be less useful, although glucose concentrations did fall more slowly following a corn-starch snack (22,153). In one of these studies, hypoglycemia was avoided at the expense of hyperglycemia (22). The role of dietary fiber has also been examined with no beneficial effects on rates of hypoglycemia found (154). One study has...

Hypoglycemia Kills Brain Cells

Hypoglycemia (see Chapter 4) often comes on fast and leaves you with a headache or a general feeling of weakness and sometimes confusion. Because of this, people have believed that low blood glucose, especially if it occurs repeatedly, may destroy mental functioning. People who have had repeated episodes of hypoglycemia have shown no loss of mental functioning. Children may have different results because their brains are still developing. Fortunately, your body is supplied with hormones to reverse hypoglycemia. Some things you can do to prevent it include checking your blood glucose prior to heavy exercise and keeping a supply of rapidly absorbable glucose nearby. Also, let coworkers and loved ones know about your diabetes and how to recognize hypoglycemia. If you're prone to frequent low blood glucose, wear an ID bracelet.

The real risk of hypoglycemia in the workplace

A study in Diabetes Care in June 2005 represents an important accomplishment for people who take insulin. In this study, researchers looked at 243 employees (ranging in age from 20 to 69) who were taking insulin for diabetes. Over a 12-month period, researchers recorded the frequency, severity, and consequences of hypoglycemia occurring at work or elsewhere. (They focused on hypo-glycemia because it's the most common complication that employers point to as the reason they don't want to hire people with diabetes.) During the period of study, there were 1,995 episodes of hypoglycemia that were mild and could be treated by the patients. There were an additional 238 severe episodes that required help from someone else. Of the severe episodes, 62 percent happened at home, 15 percent occurred at work, and 23 percent occurred elsewhere. (Fifty-two percent of the severe episodes occurred during sleep.) As for the consequences of severe hypoglycemia, 14 percent of the patients being studied...

Clinical Aspects Of Hypoglycemia

Hypoglycemia constitutes a medical emergency and quick correction is important for survival of the individual. Recovery requires the appropriate glucoregulatory signaling from the brain, an enzmatically and structurally intact liver, and an adequate activation of the ANS and neuroendocrine systems. Normally, this acute physiologic counterregulatory response to hypoglycemia consists of suppression of insulin release and secretion of glucagon, epinephrine, and a host of other glucoregulatory substrates. However as discussed in detail, the response to hypoglycemia in adults with T1DM is altered. Treatment is often complicated by the dynamics of HU and HAAF and more fundamentally, by excessive action of exogenous insulin. This exogenous insulin that is delivered peripherally and not portally (as with endogenous insulin) is not responsive to change in blood glucose concentrations and has variable and nonphysiologic pharmocodynamics. There are several different challenges to preventing...

Distinguishing the severity levels of hypoglycemia

Hypoglycemia is divided into three levels of severity, depending on the symptoms and how difficult it is to get the patient to take some treatment (I discuss treatment in more detail later in this chapter) i Mild hypoglycemia, which is marked by a blood glucose of about 75 mg dl, is easily treated by the patient (or caretaker if the patient is a child). Glucose levels come back to normal with small amounts of carbohydrate. Mild hypoglycemia is usually well-tolerated, and the person can go on with his day after he's raised the blood glucose to normal. The diagnosis is usually made during routine testing of the blood glucose rather than by symptoms. i Moderate hypoglycemia, which is marked by a blood glucose of about 65 mg dl, is treated by the caretaker by giving two to three glucose tablets, waiting 20 minutes, and testing to make sure the glucose is back to normal. If it isn't normal, more glucose is given. It's recognized as the patient begins to feel the adrenergic symptoms,...

Subacute Effects of Hypoglycemia Cogntive Effects and Mood

Most research of the acute effects of hypoglycemia on cognitive performance has been performed in adults both with and without diabetes. A variety of neuropsycholog-ical tests have been used to assess cognition in these acute situations and there has been considerable variation among study results, depending on glucose nadir achieved and tests employed. The limitation of all of these studies is the difficulty in interpreting psychological test results. Although decrements may be demonstrated, the meaning of these in terms of brain processes is not unequivocal, and it is not clear to what extent they represent abilities that are important in everyday functioning (97). symptom generation (98). Studies have shown that cognitive function consistently deteriorates at a glucose concentration of about 2.8 mmol L in adults both with and without type 1 diabetes (99-101) but it can occur at a higher glucose concentration, which may indicate that some tests are more sensitive than others in the...

Mechanisms Of Counterregulatory Responses To Hypoglycemia In

Figure 2 Diagrammatic outline of defective counterregulatory responses to hypoglycemia in T1DM. Hence, the first defense against hypoglycemia is lost. Within a similar time frame (about 5 years), the glucagon response to falling glucose levels is also lost. Thus, an important second defense against hypoglycemia also fails. It should be noted that pancreatic alpha cells are present in equal numbers and size as compared to age and weight matched non-diabetic individuals. Glucagon responses to other physiologic stress such as exercise and amino acid infusion are preserved in T1DM. The mechanism of this selective and therefore functional (rather than anatomic) defect in glucagon secretion is controversial. Hypotheses, with supporting data, have included autonomic neuropathy and a failure of insulin shut off as the mechanism responsible for the lack of glucoagon release during hypoglycemia in T1DM (3,7-11,20). Epinephrine (not glucagon), therefore, constitutes the main defense against...

Causes of hypoglycemia

Hypoglycemia results from elevated amounts of insulin driving down your blood glucose to low levels, but an extra high dose of insulin or sulfonylurea medication isn't always the culprit that elevates your insulin level. The amount of food you take in, the amount of fuel (glucose) that you burn for energy, the amount of insulin circulating in your body, and your body's ability to raise glucose by releasing it from the liver or making it from other body substances all affect your blood glucose level. On average, hypoglycemia occurs about 10 percent of the time in people with type 1 diabetes, but it causes noticeable symptoms only about twice a week and is severe perhaps once a year. In people with type 2 diabetes, severe hypoglycemia occurs only one-tenth as often. The medications described in the next section are part of the reason that people with type 1 diabetes have to deal with hypoglycemia more often. Many people with type 1 diabetes (and some with type 2) rely on insulin...

Hypoglycemia In The Nondiabetic State

Physiological Changes in Response to Hypoglycemia When exogenous insulin is injected into a non-diabetic adult human, peripheral tissues such as skeletal muscle and adipose tissue rapidly take up glucose, while hepatic glucose output is suppressed. This causes blood glucose to fall and triggers a series of counterregulatory events to counteract the actions of insulin this prevents a progressive decline in blood glucose and subsequently reverses the hypoglycemia. In people with insulin-treated diabetes, many of the homeostatic mechanisms that regulate blood glucose are either absent or deficient. Counterregulation The initial endocrine response to a fall in blood glucose in non-diabetic humans is the suppression of endogenous insulin secretion. This is followed by the secretion of the principal counterregu-latory hormones, glucagon and epinephrine (adrenaline) (5). Cortisol and growth hormone also contribute, but have greater importance in promoting recovery during exposure to...

Hypoglycemia In People With Diabetes Epidemiology

Most data on the frequency of hypoglycemia have been collected retrospectively in people with type 1 diabetes and predominantly focus on severe events, which are relatively robust to measure as they can be recalled with accuracy for up to 1 year in people with normal symptomatic awareness (12). Total amnesia of severe hypoglycemia is common, and obtaining an accurate estimate is often difficult in people who have impaired awareness of hypoglycemia relatives and friends may provide a more reliable history than the patient. Mild (self-treated) episodes are quickly forgotten and can be recalled by individuals for only about a week (12). However, prospective studies in Denmark and England that were performed 20 years apart, during which time insulin formulations and regimens changed considerably, have shown that the average incidence of mild hypoglycemia has remained unchanged at around two episodes per week (12,13). Prospective recording of hypoglycemic events over a defined period of...

Impact Of Hypoglycemia

There is little published information about the clinical impact of hypoglycemia in type 2 diabetes. While it is reasonable to extrapolate from the experience in type 1 diabetes, there are obvious differences. As noted earlier, episodes of hypoglycemia become familiar events early Iatrogenic hypoglycemia causes both physical morbidity (and some mortality) and psychosocial morbidity (6). While estimates of hypoglycemic mortality rates in type 2 diabetes are not available, deaths caused by sulfonylurea-induced hypoglycemia (like insulin-induced hypoglycemia) are well documented (14). The mortality of a given episode of severe sulfonylurea-induced hypoglycemia has been reported to be as high as 10 (14,15). The physical morbidity of an episode of hypoglycemia ranges from unpleasant neurogenic (autonomic) symptoms, such as sweating, hunger, palpitations, tremor and anxiety, to neuroglycopenic manifestations. The latter range from cognitive impairments and behavioral changes to seizures and...

Hypoglycemia

Hypoglycemia is not unusual for people with diabetes who take glucose-lowering medications, such as sulfonylurea or insulin Causes of Hypoglycemia (then it's called an insulin reaction). It occurs when blood glucose levels get too low. At the beginning of a hypoglycemic reaction, you might feel dizzy, sweaty, shaky, or faint. If untreated, you could lose consciousness or have seizures. On average, people with type 1 diabetes have one or two episodes of hypoglycemia each week. It is much less common among people with type 2 diabetes. Hypoglycemia is usually caused by insulin doing its job too well. In people without diabetes, the body stops releasing insulin before glucose levels fall too low. But if you inject insulin, there is no way to shut it off.

Bgat Hypoglycemia

American Diabetes Association Workgroup on Hypoglycemia. Defining and reporting hypoglycemia in diabetes. Diabetes Care 2005 28 1245-1249. 2. The Diabetes Control and Complications Trial Research Group. Hypoglycemia in the Diabetes Control and Complications Trial. Diabetes 1997 46 271-286. 17. ter Braak EWMT, Appelman AMMF, Van de Laak MF, Stolk RP, Van Haeften TW, Erkelens DW. Clinical characteristics of type 1 diabetic patients with and without severe hypoglycemia. Diabetes Care 2000 23 1467-1471. 20. Zammitt NN, Frier BM. Hypoglycemia in type 2 diabetes pathophysiology, frequency, and effects of different treatment modalities. Diabetes Care 2005 28 2948-2961. 22. Leese GP, Wang J, Broomhall J, et al. (for the DARTS MEMO Collaboration). Frequency of severe hypoglycemia requiring emergency treatment in type 1 and type 2 diabetes a population-based study of health service resource use. Diabetes Care 2003 26 1176-1180. 29. The DCCT Research Group. Epidemiology of severe hypoglycemia in...

Explain Hypoglycemia

,f you take either insulin or one of the sulfonylurea medications (see Chapter 10), you may become hypoglycemic. Occasionally, hypoglycemia can be so severe that you're unaware of the problem. At that point, someone in your environment needs to know the symptoms of hypoglycemia and how to treat it. Chapter 4 contains all that information. You may want to make a list of the signs and symptoms of hypoglycemia and pass it around to your family and friends. You should keep that list and an emergency kit to treat hypoglycemia at home and at work. You may even want to wear a medical alert bracelet so someone can identify your problem when none of these people are around.

Exercising with Diabetes

In general, the best time to exercise is when glucose peaks, about sixty to ninety minutes after eating. This timing provides enough energy, allows calories to be burned, and avoids high blood sugar after eating. Also important is to learn how to determine the right insulin dosages before, during, and after exercise. Why Too much insulin before a workout can lead to too-low blood sugar, or hypoglycemia, while not enough insulin can cause too-high blood sugar, or hyperglycemia. Stress and heat can affect the blood glucose insulin balance, so these factors must also be taken into account. A good idea is to have some carbohydrates available during exercise in case blood sugar needs to be raised quickly. Eating carbohydrates helps to prevent hypoglycemia. And exercising with a partner who knows what to do in case of a diabetic emergency can add a safety factor as well as make exercise more fun.

Cognitive Functioning

Early research in cognitive functioning focused on type 2 diabetes as a theoretical model of accelerated aging e.g., Kent (101) but, more recently, there has been interest in potential changes in cognition that might make patient adherence to treatment more difficult (102). Both chronically elevated high blood sugars and recurrent low blood sugar levels have the potential to independently contribute to cognitive dysfunction, for example through changes to the blood-brain barrier transport of glucose. Verbal learning and memory skills may be especially disrupted in type 2 diabetes, but mainly for patients older than 60 years of age (103-105). Other cognitive skills, such as attention, executive function, and psychomotor efficiency, were less affected. Although most research on cognition in diabetes has been conducted with type 1 patients, studies show that middle-aged type 2 individuals are apparently protected, insofar as researchers have only infrequently reported learning and memory...

How can I prevent a hypo

Prevention is the key to dealing with hypoglycaemia. To keep your blood sugar from falling too low, eat your meals at around the same times each day - never skip meals. Recognise that hunger may be a sign that your blood sugar level is too low, and that you need to take steps to bring it back up to within a normal range. Also, make sure you take your medication as directed, in the correct dosage and at the proper times. Be vigilant about monitoring your blood sugar levels. In this way you will be able to detect low blood sugar, even if you are not experiencing any overt symptoms.

Aerobic Exercise Options

For safe walks, wear appropriate shoes. Never go barefoot. Wear loose-fitting clothing and dress in layers you can remove if you get hot. Start slowly, and increase your distance and pace each week. Take long, easy strides, and breath deeply. Carry some fast acting sugar and be aware of low blood sugar symptoms. In hot weather, bring extra fluids. Always check your feet for injuries after walking.

Drug Therapy for Advanced Diabetics

Insulin replacement therapy is also a last resort for type-2 diabetics. While insulin therapy is universal and essential among type-1 diabetics, it is reserved for only severe, refractory (non-responsive to treatment) type-2 diabetics. Proper dosing and monitoring of blood glucose are essential as too much insulin causes low blood sugar and coma, and too little insulin creates hyperglycemia. A new delivery system for insulin was recently approved by the US Food and Drug Administration. This new system allows for inhaled insulin. But the early promise of this therapy has waned as the delivery system had proved unreliable for maintaining a proper dose rate.

Is there a threshold above which the risk noticeably increases

Naturally, another question arises how low should the blood sugar level be Is a very low concentration actually dangerous In the patients treated intensively with insulin, there was a risk of hypoglycaemia (dangerously low blood sugar). In the DCCT, particular attention was paid to the 'danger' of intensive therapy. Patients undergoing such therapy did in fact experience hypogly-caemia more frequently than those treated conventionally. Considering the poor metabolic control observed in the conventionally treated group, this is hardly surprising.

Special Considerations for Intensive Diabetes Management

Have a history of severe hypoglycemic episodes or hypoglycemia unawareness are younger than age 10, unless you have motivated and supportive parents and or caregivers are elderly, with other health problems or impairments have cardiovascular disease, angina, or other medical conditions that can be aggravated by hypoglycemia have severe complications of diabetes have conditions such as debilitating arthritis or severe visual impairment that would functionally limit intensive management Intensive diabetes management can be risky for the elderly because of the increased risk for hypoglycemia. Hypoglycemia may also make it harder to live alone or be independent. Some older people may find the potential benefits not worth the risk, particularly if they have other health problems or impairments. However, if you are an older person who believes that you will live long enough to reap the benefits (about 10 years) and are willing to take on this responsibility, then let your health care team...

Adverse Effects Of It In Adolescents

The benefits of IT, however, need to be balanced against the major observed adverse effects hypoglycemia and weight gain. Hypoglycemia is of special concern because the plasma glucose level at which adrenergic warning signs appear tends to fall with IT (23,24). In addition, the brain requires glucose as an oxidative substrate during each hypoglycemic episode (25). For these reasons, lapses into impaired judgment, confusion, coma, and convulsions become more frequent (23). A predilection for events to occur during sleep poses an additional danger (26,27). The event rate for severe hypoglycemia (defined as requiring treatment by another person) was 86 per 100 patient-years in the adolescents treated intensively compared to 57 per 100 patient-years in the adults so treated (22). For hypoglycemic events resulting in coma or seizure, these respective rates were 27 and 14 per 100 patient-years, respectively (22). The relative risks of severe hypoglycemic events with IT vs CT were 2.9 in...

Perioperative Management Of The Type Diabetic Outpatient Surgery

Post operative glucose levels are often increased above 250 mg dL when insulin or oral agents are withheld in type 2 diabetics undergoing outpatient surgery. This data has led to the recommendation that insulin therapy be considered for all type 2 diabetics managed with an oral hypoglycemic agent. Alternatively, type 2 diabetics well controlled by diet and exercise can be managed without insulin in the ambulatory surgical setting (61,62). Patients previously treated with insulin should receive subcutaneous insulin or an intravenous infusion of insulin. Oral hypoglycemic agents that are withheld prior to the surgical procedure should be given with the first post-operative meal. Patients that take an oral hypoglycemic agent while fasting should be started on an intravenous infusion of glucose (5-10 g h) that can be titrated to hourly BG measurements. Patients that experience post-operative nausea and emesis are at increased risk for hypoglycemia and metabolic decompensation. Admission...

Future Perspectives For Young Children With Type Diabetes

Frequent daily BGM is necessary in young children because hypoglycemic episodes, especially nocturnal ones, are asymptomatic and difficult to detect, predict, and prevent. Nocturnal glucose sensors detecting hypoglycemia with an alarm are urgently needed for young diabetic children. These techniques seem to be close to becoming clinically applicable. The ultimate resolution of the difficult problems in managing diabetes in a preschool child will require closed-loop devices or cure via islet transplantation in the future.

What Should My Glucose Levels Be

In people without diabetes, glucose values can be in the 60 to 70 mg dl range or even lower with prolonged fasting. The problem with diabetes is that if you are taking medicines that can cause hypoglycemia, like insulin and sulfonylureas, a glucose level around 60 is of concern because it could go down even further. The ADA defines a glucose level of 70 mg dl or less as hypoglycemia, even if you feel fine and show no symptoms. Thus, if you are on medicines that can cause hypoglycemia, you should take action if the glucose level is below 70. If, however, you are controlling your diabetes with diet only, then values in the 60 to 80 range are fine and do not need treatment. Table 7-1 Typical Hypoglycemic Symptoms

Nervous System Complications

Autonomic neuropathy can dull the classic warning signs of hypoglycemia (palpitations, sweating, and shaking), and this may prevent you from recognizing exercise-induced hypoglycemia. Similarly, if you have hypoglycemic unawareness due to recurrent hypoglycemic episodes, you should monitor your blood glucose more frequently during and after exercise.

The Need To Tightly Control Glycemia

Until 1993, the need to intensively control glucose levels in patients with diabetes mellitus was frequently debated. In that year, however, publication of the results of the Diabetes Control and Complications Trial (DCCT) settled the argument (1) 1441 patients with insulin-dependent diabetes mellitus were randomly assigned to intensive therapy, administered either with an external insulin pump or by multiple daily insulin injections, or to conventional therapy. The amount of insulin given in the intensively managed group was determined by frequent blood glucose monitoring. The patients assigned to conventional therapy were treated with one or two daily insulin injections. Patients were followed for an average of 7 yr with close attention to the appearance and progression of secondary complications. Intensive therapy reduced the adjusted mean risk for the development of retinopathy by 76 compared to conventional therapy. Intensive therapy also slowed the progression of existing...

Glycemic Effect of Protein

Plasma as free amino acids and are transported to muscle and other tissue. Protein is not converted immediately into glucose and, as a result, does not immediately raise postprandial blood glucose levels. Consuming as much as 9 oz of protein in a mixed meal elevated postprandial blood glucose levels only slightly at 3-5 h after eating in persons with type 1 diabetes when compared to a standard meal with 3-4 oz of protein (39). Plasma glucagon levels appear to be stimulated by protein consumption in type 1 diabetes and mirror the delayed glucose elevation (40). Thus, increased hepatic glucose output, secondary to elevations in glucagon, during the latter half of the postprandial period appear responsible for the effect of protein when consumed along with carbohydrates. This attribute has led to the assumption that protein is required at every meal and in bedtime snacks to prolong the blood glucose response and prevent nighttime hypoglycemia. Little evidence exists to support or refute...

Clinical Presentation of Type Diabetes

Blood Glucose Control High Risk of Hypoglycemia A major characteristic of metabolic control in type 1 preschool children is the unstable glycemic control with its accompanying risk of severe hypoglycemia. An international cross-sectional study of around 3000 children and adolescents has shown that the highest rate of severe hypoglycemia (60 episodes), resulting in unconsciousness or seizures, was observed in the younger children, aged less than 5 yr compared to the older children (10-20 episodes per 100 patients-years) (13). In this study, the only variables with a significant effect on the incidence of severe hypoglycemia were age, which led to a decrease of 8.4 per year, and HbA1c, which led to a decrease by 21 for each increase of HbA1c by 1 . Nocturnal hypoglycemia events are also more frequent in young children than in older, as reported in two recent studies (14,15). Thus, the frequency of nocturnal hypoglycemia was twice as high in children aged under 5 yr than in children aged...

Avoiding Illegal Drugs

I All cause you to lose your awareness of hypoglycemia so you don't treat it. i Some cause you to lose your appetite so you become hypoglycemic and malnourished with vitamin deficiencies. i Amphetamine (speed, Dex, crank) and ecstasy (derived from amphetamine and also called MDMA, E, X, adam, bean, and roll) increase the body's metabolic rate, resulting in hypoglycemia because the user often does not eat properly and is unaware of the onset of low blood glucose.

Choice of Antidiabetic Agents to be Used in Combination

A number of potential combinations are depicted in Fig. 6b. Based on available clinical studies, a combining exenatide with metformin has the most obvious advantages A substantial reduction in HbA1c is associated with the numerically largest weight loss 119 (compared with combinations including sulfonylureas) 120,121 and no increased risk of hypoglycemia (despite better glycemic control) 119 . If exenatide is to be combined with sulfony-lureas 120,121,124,125 , the benefit of better glycemic control has to be weighed against the risk of hypoglycemia and less weight reduction. DPP-4 inhibitors can safely be combined with metformin and thiazolidinediones. A combination with sulfonylureas does not suggest particular advantages, since both agents, through different mechanisms, enhance insulin secretion. This combination would, most likely, not be as safe regarding hypoglycemic episodes 182 . No studies are available regarding a potential combination with a-glucosidase inhibitors or...

Adjusting insulin usage and following other precautions

I Where you inject the insulin Insulin taken in the thigh just before a run is absorbed much more quickly than if it were injected in the stomach, for example. Avoid the thigh just before exercise so that you don't become hypoglycemic early in the exercise. i How much insulin you take There has to be some insulin in your body for your muscle cells to take up glucose, but if there's too much, you may become hypoglycemic during the exercise and be unable to continue. If there's too little insulin in your system, your muscles may not get enough glucose, and you'll rapidly become fatigued. i Has a source of rapid-acting glucose available for hypoglycemia i Exercises with a friend

Identifying Neurocognitive Phenotypes

The interpretation of the early onset literature is complicated by the fact that in a number of studies, investigators have stratified their diabetic samples in terms of presence or absence of severe hypoglycemic events rather than earlier or later age at onset (14, 51). As a consequence, cognitive dysfunction has been attributed to severe hypoglycemia, but that may be in error insofar as severe hypoglycemia and onset age tend to be interrelated. Data from both epidemiologic (52) and cross-sectional studies (53) show that children with an early onset of diabetes have a greatly increased risk of severe hypoglycemia when compared to those with a later onset (45 vs. 13 ). The use of more intensive therapeutic regimens further increases the risk of severe hypoglycemia (54), particularly in those with an earlier onset of diabetes (55), perhaps because of a heightened sensitivity to insulin in young patients (56). slowed neural activity, measured at rest by electroencephalogram (EEG) and in...

If your blood glucose isEat this much carbohydrate

Of course, the goals mentioned previously are guidelines only. Discuss your needs with your health care team to create a plan that will work for you. Your target glucose levels may change over time. For instance, you could find it harder and harder to detect hypoglycemia. This would call for increasing your target range and perhaps new training at recognizing your symptoms. You'll probably want to check your blood glucose often at least as often as you inject insulin (or take your bolus dose via a pump) and sometimes more. You could be monitoring seven times a day before your three meals, after each meal, and before bedtime. You may even check at 3 a.m. once or twice a week. For instance, you will not want your blood glucose level to become too low during the night. But if you have experienced several severe hypoglycemic reactions, you may want to aim for a higher overnight blood glucose level. Every bit of testing gives you more knowledge of how your body reacts to food, exercise,...

Competing against others

1 Test his glucose several times in the hours after he competes. The exercise will make him very sensitive to the insulin and prone to hypoglycemia. 1 Should he become hypoglycemic, he shouldn't hesitate to stop and treat it. Not finishing is not the worst thing that can happen. Allowing his body to be damaged because he can't think clearly is. There will be many more competitions.

Driving Safely with Type Diabetes

I If there's any question in your mind that you may be hypoglycemic, pull off and test your blood glucose. If it's low, take glucose and make sure that the level is above 90 mg dl before you resume driving. 1 Drivers with T1DM reported more crashes, moving violations, severe hypoglycemia, and need for assistance while driving compared to drivers with T2DM and their non-diabetic spouses. Individual states issue drivers' licenses, and the applications don't consistently ask about diabetes. They usually ask about any general condition that would impair safe driving. In California, where I live and practice, the Department of Motor Vehicles requires a doctor to certify that the person with T1DM follows a good medical plan with frequent blood glucose testing, is free of frequent hypoglycemia, and can safely operate a motor vehicle.

Glucose Monitoring Self Blood Glucose Monitoring

In order to obtain blood glucose control and to maintain this on a daily basis, it is essential for patients with diabetes to do SBGM. The DCCT and other studies clearly demonstrated the importance of this approach and it is now considered as one of the cornerstones of therapy. However one of the findings of the DCCT was that with intensive therapy the number of severe hypoglycemic episodes increase. The data obtained from monitoring are used to assess the efficacy of the treatment program and the frequency of hypoglycemia, to make adjustments to the program that will involve medication change as well as reviewing medical nutrition therapy and the effects of exercise. A great deal of progress has been made in the accuracy and ease of use of the glucose monitoring equipment. Monitors are now available that need very small amounts of blood and can record and store many blood glucose results with date, time of test and even provide 14-day averages of selected tests. Some of the monitors...

Side Effects of Incretin Mimetics

As is typical for the administration of native GLP-1 184 , a considerable proportion of patients receiving exenatide experience gastrointestinal side effects, such as nausea and more rarely vomiting or diarrhea 119-121 . In the phase 3 trials with exenatide, the frequence of these adverse effects was reported to be as high as 48 during treatment with 10 g of exenatide 119-121 . However, it should be noted that, though frequent, these side effects were mostly mild to moderate in intensity and usually transient. Overall, the percentage of patients who discontinued exenatide treatment as a result of side effects was low. When considering all patients enrolled in the exenatide phase 3 trials, there also seemed to be an increase in the frequency of hypoglycemic events 119-121 , but this was limited to the patients receiving additional treatment with sulfonylurea drugs 185 . In contrast, the incidence of hypo-glycemia was unchanged in patients treated with metformin 119,121 . In the...

Results Of Studies Of Glycemic Control And Microvascular Disease

The Diabetes Control and Complications Trial (DCCT) was a landmark trial that was designed to finally answer the glycemic control and complications question (22). This was a large multicenter trial with enough statistical power to answer the issue conclusively. The study involved 1441 patients with type 1 diabetes who were randomized to either intensive glucose control or conventional treatment. The intensive therapy regimen was designed to achieve blood glucose levels close to the normal range as possible with three or more daily injections of insulin or an insulin pump. The conventional therapy consisted of one or two insulin injections. The cohorts were studied to answer two different questions that were related to the control and complications debate. One of the study questions was, whether intensive therapy would prevent the development of diabetic retinopathy (primary prevention) and the other whether intensive therapy would affect the progression of early diabetic retinopathy...

Continuous Subcutaneous Insulin Infusion Pumps

Continuous subcutaneous insulin infusion via the external insulin infusion pump is an alternative to multiple daily injections for patients with labile glucose levels and frequent episodes of hypoglycemia. These pumps attach to the body through flexible plastic tubing with a needle inserted subcutaneously in the abdominal area. 2. Marked variability in glucose levels with a history of hypoglycemic unawareness or hypoglycemic events requiring assistance. Use of the analog insulins has resulted in less overall insulin use in a 24-hour period, with even fewer episodes of less hypoglycemia. In the DCCT trial (11) with patients with type 1 diabetes, the incidence of severe hypoglycemia was three times greater in the group receiving intensive therapy than in the group receiving conventional therapy, but less than in the group receiving multiple-dose injections. The reduction in insulin requirements, better pharmacological delivery of insulin, and the minimal weight gain with insulin pumps...

Safety And Side Effects

AGIs are the safest oral antidiabetics, but are associated with a rather high frequency of gastrointestinal side effects because they inhibit digestion of carbohydrates. With > 1 million patients having taken acarbose for > 1 year, no serious adverse event has been reported. As antihyperglycemic agents they carry no risk of causing hypoglycemia. When given in combination with oral insulin secretagogues, the frequency of hypoglycemic episodes was reduced (52) and there was no increase in hypoglycemias observed in insulin-treated patients (54). A minor weight loss is observed in monotherapy with AGIs, and the weight gain caused by sulfonylureas is reduced if AGIs are added to this treatment regimen (52). AGIs can be used as first-line drugs in newly diagnosed type 2 diabetes insufficiently treated with diet and exercise alone (34,73), as well as in combination with all oral antidiabetics and insulin if monotherapy with these drugs fails to achieve the targets for HbA1c and...

Questions and Answers

Are there any side effects associated with oral hypoglycemic agents 2. Can the different types of oral hypoglycemic agents be taken together 3. What about hypoglycemia It is possible to have a hypoglycemic reaction (low blood sugar) while taking oral medication. This is particularly true of the pills that act by squeezing more insulin out of your beta cells (the sulfa-containing or sulfonylurea type pills). Rezuli n by itself does not cause low blood sugar, but taking it in addition to insulin can lead to low blood sugar. Glucophage by itself only rarely causes low blood sugar. See Chapter 8 for hypoglycemia symptoms and actions you should take if a hypoglycemic reaction occurs. Report hypoglycemia to your doctor. To avoid problems, follow your diet, monitor blood glucose, take your pills as directed , and see your health-care providers regularly.

Chapter Oral Medications

Sometimes diet alone is not enough to control Type II diabetes. Your doctor may prescribe oral hypoglycemic agents (pills) as a supplement to diet and exercise for controlling your diabetes. There are several kinds of pills for helping to lower blood sugar. None of these pills is insulin If diet, exercise, and oral hypoglycemic agents are not enough to control your blood sugar, then insulin may be needed. Oral hypoglycemic pills do not cure diabetes, they only help to control it. When taking pills, you must still follow your meal and exercise plans, monitor your blood glucose daily, and if you are overweight, follow your weight reduction plan. Oral hypoglycemic agents may help until you lose weight, but maintaining your ideal weight is the best way to stay in balance.

Alphaglucosidase Inhibitors

Like bigaunides, this class of agents is considered to be antihyperglycemic, since when used as mono-therapy they do not result in hypoglycemia. Another potential advantage of AGIs when used as mono-therapy is that there is no associated hyperinsulinemia or weight gain. However, if patients are treated with a combination of an AGI and a hypoglycemic agent such as insulin or a sulfonylurea, glucose should be used to treat the hypoglycemic reactions since sucrose or a complex carbohydrate will not be readily effective. Hypoglycemia is a major concern and limiting factor in treating elderly patients with Type 2 diabetes. Considering the favorable tolerability and safety profile of AGIs, some diabetologists therefore choose these agents as first-line therapy in elderly Type 2 diabetic subjects with fasting blood glucose levels < 11.0 mM (Johnston et al 1998). However, the relatively higher cost of these agents, the need for multiple daily dosing and the gastrointestinal side-effects...

How often should you test

1 If you have type 1 or type 2 diabetes and you're taking before-meal insulin, you need to test before each meal and at bedtime. The reason for this frequent testing is that you're constantly using this information to make adjustments in your insulin dose. No matter how good you think your control is, you cannot feel the level of the blood glucose without testing unless you're hypoglycemic. In fact, I have had my patients try to guess without testing on numerous occasions and then I test it. They are close less than 50 percent of the time. That degree of accuracy is not sufficient for good glucose control. 1 If your diabetes is temporarily unstable and you're about to drive, you may want to test before getting into the car to make sure that you're not on the verge of hypoglycemia.

Becoming Familiar with Workplace

Getting a pilot's license is not easy but is well worth the effort for the person who loves to fly. To be successful, you must have no other disqualifying conditions, such as arteriosclerotic disease of the heart or brain, diabetic eye disease, or severe kidney disease (see Chapter 5). You must have had no more than one hypoglycemic reaction with loss of consciousness in the last five years and at least a year of stability after that. You must be evaluated by a specialist every three months after you get the license and measure your blood glucose multiple times a day. You must carry a glucose meter and meter supplies in flight, along with supplies for rapid treatment of hypoglycemia. Your blood glucose must be between 100 and 300 mg dl (5.5 to 16.6 mmol L) a half hour before takeoff, every hour of the flight, and a half hour before landing. However, you're not expected to measure your blood glucose in flight if doing so interferes with properly flying the plane. Phew If Lindbergh were...

Methodological Considerations

When studying children with any type of chronic disorder, it is critically important to be able to identify and document, for each child, the nature and extent of their disease process from both a biomedical and a psychosocial perspective. For the diabetic child, we ought to - but hardly ever - have medical, metabolic, and psychosocial data from diagnosis onward. Did the child experience ketoacidosis and or cerebral edema around the time of diagnosis or anytime thereafter Since diagnosis, how often and for what duration did the child experience excessively low - and excessively high - glucose values, and how were these episodes of hypoglycemia and hyperglycemia operationalized When did the child begin to show evidence of microvascular complications and other comorbid conditions like blood pressure elevations, and how did these progress over time How did the child cope psychologically with the diagnosis of diabetes and with diabetes-related events, like the occurrence of a hypoglycemic...

Effect On Intellectual Function

Do repeated low glucose levels affect intellectual function Research studies that looked at this topic have not given clear answers. Part of the problem is that many subjects who have severe hypoglycemic reactions also have other complications from the diabetes that could impact intellectual function. What is reassuring is that in the DCCT (a big research study of type 1 diabetes), severe hypoglycemic episodes did not result in decreased intellectual function over eighteen years of follow-up. This, however, may not be true in very young children (less than five years old), and for this group glucose levels should not be as tightly controlled as in adults (see Chapter 14).

Therapeutic implications

Consideration of the derangements in platelet function, the coagulation system, and the fibrinolytic system and their contributions to exacerbation of macrovascular disease in type 2 diabetes gives rise to several therapeutic approaches. Empirical use of aspirin (160-325 mg per day in a single dose) seems appropriate in view of the high likelihood that covert CAD is present even in asymptomatic people with type 2 diabetes and the compelling evidence that prophylactic aspirin reduces the risk of heart attack when CAD is extant. Because many of the derangements contributing to a prothrombotic state in diabetes are caused by hyperglycemia, rigorous glycemic control is essential. Accordingly, the use of diet, exercise, oral hypoglycemic agents, insulin sensitizers, and if necessary insulin itself is appropriate to lower HbA1c to 7 . Because other derangements contributing to a prothrombotic state such as attenuation of fibrinolysis appear to be related to insulin resistance and...

Clinical Trials of Human Islet Allotransplantation

Our experience in Miami with islet allotransplantation in type 1 diabetic patients has demonstrated that long-term islet function could also be achieved in the presence of autoimmunity. Six of eight patients demonstrated graft function for more than 60 d, including two patients in whom C-peptide secretion was demonstrated for over 9 yr, and two patients were euglycemic and insulin independent for over 1 mo (97,117). Although all recipients had elevated levels of HbA1c despite intensive insulin therapy and recurrent episodes of moderate to severe hypoglycemia prior to transplantation, insulin requirements and HbA1c levels were significantly reduced in all six patients with evidence of graft function. In addition, neither patient with long-term graft function has experienced hypoglycemic episodes. The results of the Edmonton protocol are remarkable Seven of seven patients were able to discontinue insulin and remain so with a median follow-up of 11.9 mo a compelling improvement of blood...

Prevention Or Delay Of Type Diabetes

Three recent trials in older adults with T2D have assessed the effect of lowering blood glucose to near-normal levels on cardiovascular risk. First, patients in the Action to Control Cardiovascular Risk in Diabetes (ACCORD) trial (n 10,251) had a mean age of 62.2 years at entry and 10 years of diabetes duration. Sixty-two percent were men, and 30 had prior macrovascular disease and a baseline median HbA1c level of 8.1 (48). Study patients were assigned to receive intensive therapy (median HbA1c level achieved of 6.4 ) or standard therapy (median HbA1c level achieved of 7.5 ). After a median follow-up of 3.4 years, compared to the standard-therapy group, those in the intensive-therapy group had higher overall mortality (4 vs. 5 ) and cardiovascular mortality (1.8 vs. 2.6 ) and greater-number of hypoglycemic events (1 vs. 3.1 ). Second, patients in the Action in Diabetes and Vascular Disease Preterax and Diamicron Modified Release Controlled Evaluation (ADVANCE) Study (n 11,140) had a...

Overview of Diabetes Management Combined Treatment and Therapeutic Additions

Beneficial effects, however, were obtained at the expense of a more common weight gain and, especially, of an increased (3-fold) risk of severe hypoglycemic episodes, often not accompanied by the classical symptoms (intensive treatment reduces the adrenergic response to hypoglycemia), which makes intensive treatment less appropriate for some people (hypoglycemia unawareness, special occupations, children, old people, etc.). Finally, it should be noted that the DCCT results were obtained through a close cooperation between the patients themselves and an expert team, primarily nurse educators and dieticians. Therefore, it may not be easy to follow the DCCT criteria in everyday clinical practice. The data from DCCT conclusively demonstrate that in type 1 diabetes the control of blood glucose really matters to prevent late complications. A recently concluded multicenter investigation on a very large study population (> 5,000 patients), the United Kingdom Prospective Diabetes Study...

Understanding Home Monitoring

Blood glucose monitoring at home is an important part of diabetes management and serves a number of purposes. First, monitoring at home makes it easier to detect low blood glucose reactions, because you cannot rely on how you feel to detect low glucose levels. When aiming for the glucose targets mentioned in Table 5-1, many people with diabetes develop hypoglycemic unawareness (see Chapter 7), meaning they can have glucose levels in the 40s and 50s and still feel quite fine. For this reason,

Patients with renal or hepatic disease are at increased risk of sulphonylurea induced hypoglycaemia

Sulphonylurea induced hypoglycaemia is not only a problem in individuals with diabetes. It is also occurs in subjects who do not have diabetes, and these agents have been used in suicide attempts by both diabetic and non-diabetic individuals. This is in part due to the wide availability of, and access to, these potentially dangerous drugs. In fact, people without diabetes may be more sensitive to the hypoglycemic effects of sulphonylureas than are people with underlying insulin resistance and impaired -cell function. Additionally, prescribing or dispensing errors have occasionally resulted in the inadvertent administration of sulphonylureas to subjects without diabetes, causing hypoglycaemia that often requires a thorough medical investigation to uncover (see Chapter 4). Sulphonylurea induced hypoglycaemia in children is not uncommon. In fact, approximately half of all cases of sulphonyl-urea ingestion reported to US poison control centres occur in the paediatric age group. This is...

Diabetic autonomic neuropathy

The symptoms of autonomic dysfunction should be elicited carefully during the history and review of systems, particularly since many ofthese symptoms are potentially treatable. Major clinical manifestations of diabetic autonomic neuropathy include resting tachycardia, exercise intolerance, orthostatic hypotension, constipation, gastroparesis, erectile dysfunction, sudomo-tor dysfunction, impaired neurovascular function, brittle diabetes, and hypoglycemic autonomic failure.

First Trimester Weeks

A team approach with joint management by the obstetrician, endocrinologist, nurse educator, and dietician is recommended as early as possible to maintain strict euglycemia, avoid ketonuria, and achieve the lowest glucose values while avoiding frequent hypoglycemia. Hyperemesis gravidarum is routinely addressed and aggressively treated to avoid hyper- or hypoglycemia and ketosis. The first trimester HbA1c is used to counsel patients about the risks of miscarriage and congenital birth defects. Higher HbAlc levels are associated with higher risks of birth defects. The pathophysi-ology of this association is not known. There are likely many variables in the pathway for embryopathy that may be synergistic with or resulting from hyperglycemia including disruption of regulatory genes (Pax3 that controls embryo development), oxidative stress interrupting prostaglandin metabolism, inhibition of somatomedin activity, deficiency in myoinosotol, accumulation of sorbitol, ketonuria, and other...

Comments on figure

The weight of the food inputs was not as well controlled as in home-prepared meals also the meals were eaten in late afternoon after only 4 hours of fasting, however, due care was exercised to try to make valid comparisons. The food was purchased at Wendy's and then consumed at home where the effects of a red wine (Merlot) on the meal could be determined. Merlot was found to reduce BG, that is, it acted as an oral hypoglycemic agent in these tests. Further tests with Merlot, shown in figure 5-7, support this finding.

Foods That Reduce Blood Sugar

Alcohol and onions were reported in the Diabetic mailing list at Lehigh as two substances that reduced BG level under some conditions. These reports illustrate the power of the Internet for people to share their experiences. The test conditions were not defined exactly by those reporting, but because the tests were not immediately after overnight fasting, it is quite possible that the BG reduction came from inhibited protein conversion effects as indicated by Bernstein 1 . My tests show a small hypoglycemic effect for both red wine (Merlot) and onions when ingested after overnight fasting.

Other Agents And Metabolites Which Can Alter Thiazolidinediones

Thiazolidinedione (TZD) compounds are widely used as oral hypoglycemic agents. A recent study in diabetic rats and mesangial cells cultured under high glucose condition reported that treatment with troglitazone can ameliorate the increase in glomerular hyperfiltration, albumin excretion and extracellular matrix deposition associated with diabetes. This is attributed to the action of thiazolidinediones on activating a DAG kinase, which could metabolize DAG to phosphatidic acid and therefore avoid the accumulation of DAG and its subsequent activation of the DAG-PKC-ERK pathway. This finding suggests that TZDs potentially could be beneficial for diabetic nephropathy by preventing the activation of DAG-PKC-ERK pathway 71 .

Following up and treating your diabetes

The need for insulin diminishes immediately or within days of a transplant. It's important to measure your blood glucose frequently to know when you may reduce your insulin shots. Hypoglycemic episodes and brittleness of the diabetes (frequent and unexpected ups and downs in the blood glucose) improve within one month of the transplant.

Impaired insulin secretion and insulinstimulated glucose uptake

In the Diabetes Mellitus Insulin Glucose Infusion in Acute Myocardial Infarction (DIGAMI) trial 14-16 , acute treatment for at least 24 hours with intravenous GIK until blood sugar was controlled, coupled with aggressive subacute treatment with subcutaneous insulin, resulted in a 29 relative reduction in 1-year mortality in a cohort of patients that predominantly had type 2 DM. As compared with 43 of control patients, 87 of GIK-treated patients were discharged on insulin. Patients who had previous insulin use and a low CV risk profile had the most promising results (58 reduction in in-hospital mortality and 52 reduction in 1-year mortality). Hypoglycemia occurred in 15 of patients who received insulin infusion however, only 10 of patients required discontinuation of their insulin infusion. There was appropriate use of cardioprotective drugs during AMI in the DIGAMI-2 trial. At hospital discharge, beta-blockers were given to over 80 of the patients, aspirin was given to nearly 90 of...

Treatment for Comorbid Anxiety and Diabetes

While very few empirical studies have evaluated efficacy of treatment for anxiety among adults with DM1, one case study has demonstrated that cognitive-behavioral therapies (CBT) may be useful, suggesting that CBT may be as effective for this population as for others (55). Since anxiety greatly affects quality of life, since studies utilizing interview assessment of anxiety indicate that it interferes with medical outcomes for those with DM1 (54), and since diabetes-specific anxiety and hypoglycemic fear may interfere with glycemic control, interventions to treat anxiety among those with DM1 are greatly needed (50,51).

Glycemic Control What Do I Have to Do

Oral hypoglycemic medications, including sulfonylureas and thiazolidinediones, should be discontinued and insulin started in the preconception period. One may consider continuing metformin in women with PCOS as discussed in more detail in Chapter 10. Basal insulin can be supplied either through the use of NPH insulin or through CSII. Lispro and aspart have been studied in pregnancy and can be used for bolus therapy. Glargine has not been studied in randomized controlled trials in pregnancy (60). A large study of insulin detemir in pregnancy is underway. Results of this study have not been published at the time of submission of this chapter.

The Diabetic Surgical Population

It is estimated that 6.0 million patients develop significant hyperglycemia each year while in the hospital. Many of these patients will have a prior diagnosis of type 1, type 2, gestational, or secondary diabetes. Approximately half of the hyperglycemic patients will have previously undiagnosed diabetes and will require insulin or oral hypoglycemic therapy following discharge from the hospital (27-29). A significant number of non-diabetic patients will develop hyperglycemia due to the metabolic effects of anesthesia, tissue trauma, pain, systemic illness, and infection (1-3). Although insulin is often required during the stressful event, medication is often not required following hospital discharge. The number of surgical patients with diabetes and impaired glucose tolerance (IGT) is expected to increase over the next 15 years, due to the aging baby-boom population, the sedentary lifestyle of the US population, and the increasing incidence of obesity (26,29). It is important to...

Deciding on the frequency of testing

The minimum frequency to test your child is before each meal and at bedtime. You can test his glucose more frequently depending upon the situation. The minimum testing frequency must be met because you're constantly using this information to make adjustments in his insulin dose. No matter how good you think his control is, he can't feel the level of the blood glucose without testing unless he's hypoglycemic (see Chapter 4). And even then, he knows the glucose is low but doesn't know just how low it is.

Rationale for the Use of Human Insulin During Pregnancy

Maternal anti-insulin antibodies may contribute to hyperinsulinemia in utero and thus potentiate the metabolic aberrations in the fetus. Although insulin does not cross the placenta, antibodies to insulin do cross the placenta and may bind fetal insulin this necessitates the increased production of free insulin to reestablish normoglycemia. Thus, the anti-insulin antibodies may potentiate the effect of maternal hyperglycemia to produce fetal hyperinsulinemia. Human and highly purified insulins are significantly less immunogenic than mixed beef-pork insulins (45). Human insulin treatment has been reported to achieve improved pregnancy and infant outcome compared to using highly purified animal insulins (45). Recently, the insulin analog lispro (which has the amino acid sequence in the P-chain reversed at position B28, B29) has been reported to be more efficacious than human regular insulin to normalize the blood glucose levels in gestational diabetic women. This insulin rapidly lowered...

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