Chronic Kidney Disease USMLE Step 1 Practice Question
A 63-year-old man with diffuse atherosclerosis and poorly controlled hypertension (BP 178/104 mmHg, HR 88/min) presents with a systolic abdominal bruit. Serum creatinine rises from 1.2 to 1.8 mg/dL within 2 weeks of starting lisinopril. Duplex ultrasound shows peak systolic velocity of 400 cm/s in the renal artery. He denies flank pain or hematuria. Which of the following is the most likely diagnosis?
Answer choices
- AAutosomal dominant polycystic kidney disease
- BEssential hypertension
- CPrimary hyperaldosteronism
- DPheochromocytoma
- ERenal artery stenosisCorrect answer
- FFibromuscular dysplasia of the renal artery
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