Chronic Kidney Disease USMLE Step 1 Practice Question
A 47-year-old woman presents with fever (38.8°C), pruritic rash, and left flank pain 10 days after initiating omeprazole for reflux. Vital signs show BP 142/88 mmHg, HR 98/min, RR 18/min, SpO2 98% on room air. Serum creatinine increased from 0.9 to 2.1 mg/dL. Urinalysis demonstrates pyuria with 15% eosinophiluria. Complete blood count shows eosinophilia (8%). She denies dysuria. Which of the following is the most likely diagnosis?
Answer choices
- APrerenal azotemia
- BRenal artery stenosis
- CPostinfectious glomerulonephritis
- DAcute tubular necrosis
- EAcute interstitial nephritisCorrect answer
- FIgA nephropathy
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