A 67-year-old man presents with a two-month history of increasing tiredness and muscle weakness. His past history includes hypertension, diabetes and

Subject
Medicine
System
Cardiology & Vascular System

Kathryn

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Jul 29, 2020
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A 67-year-old man presents with a two-month history of increasing tiredness and muscle weakness. His past history includes hypertension, diabetes and a myocardial infarction complicated by cardiac failure. He takes an oral hypoglycaemic and medications for his hypertension of an angiotensin-converting enzyme (ACE) inhibitor and a thiazide diuretic. Physical examination is unremarkable. His haemoglobin is 130g/L (135-155) and serum potassium 3.0mmol/L (3.4-4.5). Which one of the following would be the most likely explanation for his curent problem?
(A) His antihypertensive medications
(B) Conn syndrome (primary hyperaldosteronism)
(C) A villous adenoma of the rectum
(D) A carcinoma of the gastrointestinal tract
(E) Congestive cardiac failure
 
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