Diabetes Mellitus USMLE Step 1 Practice Question
A 67-year-old man with diffuse atherosclerosis presents with recurrent flash pulmonary edema. Vital signs show BP 198/112 mmHg, HR 102/min, RR 24/min, and SpO2 94% on room air. Laboratory studies reveal elevated plasma renin activity, elevated aldosterone levels, serum potassium 3.1 mEq/L, and arterial pH 7.48. Chest X-ray shows bilateral pulmonary edema. He denies recent medication changes. Which of the following is the most likely underlying cause?
Answer choices
- ASIADH
- BPituitary ACTH adenoma
- CRenal artery stenosisCorrect answer
- DAldosterone producing adrenal adenoma
- EAddison disease
- FPrimary hyperaldosteronism (Conn syndrome)
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