A 58-year-old man with type 2 diabetes developed transient left-sided weakness with slurring of speech lasting for four hours. On clinical examination, he is in sinus rhythm, blood pressure is 142/84 mmHg and there is an audible right-sided carotid bruit on auscultation. He has no history of ischaemic heart disease and does not smoke. He currently takes low-dose aspirin and an angiotensin-converting enzyme (ACE) inhibitor at night.
How should he be managed?
What investigations should be carried out?
What is his prognosis?
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