Thromboembolic complications are important causes of mortality in patients with hyperglycaemic emergencies arising as a consequence of dehydration, increased blood viscosity and increased coaguability. Disseminated intravascular coagulation has also been reported as a rare complication of diabetic ketoacidosis. The role of prophylactic anticoagulation has not been clearly established and routine anticoagulation is not recommended in view of the risks of haemorrhage. Clinically evident thromboembolism is treated conventionally.
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