Acute Kidney Injury USMLE Step 1 Practice Question
A 64-year-old man with chronic kidney disease (baseline creatinine 2.5 mg/dL) is started on lisinopril for hypertension. Two weeks later, his serum creatinine rises to 3.8 mg/dL. Urinalysis is bland. Renal artery ultrasound with Doppler shows peak systolic velocities suggestive of >70% stenosis bilaterally. Which of the following is the most likely diagnosis?
Answer choices
- AProgression of underlying chronic kidney disease
- BAcute tubular necrosis from hypotension
- CAcute interstitial nephritis from lisinopril
- DAcute glomerulonephritis
- EAcute kidney injury from ACE inhibitor in bilateral renal artery stenosisCorrect answer
- FAcute kidney injury from lisinopril-induced hyperkalemia and cardiac arrhythmia
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