Acute Kidney Injury USMLE Step 1 Practice Question
A 35-year-old man with membranous nephropathy presents with sudden left flank pain and gross hematuria. Vital signs show BP 158/96 mmHg, HR 102/min, RR 18/min, temperature 37.2°C, and SpO2 98% on room air. Laboratory studies reveal serum albumin 2.1 g/dL, serum creatinine 2.8 mg/dL (baseline 0.9), and 24-hour urine protein 8.5 g. Doppler ultrasound demonstrates impaired venous outflow from the left kidney with thrombosis. He denies fever or recent trauma. Which underlying glomerular disease most strongly predisposed this patient to this thrombotic complication?
Answer choices
- AIgA nephropathy
- BType 1 renal tubular acidosis
- CMembranous nephropathyCorrect answer
- DPoststreptococcal glomerulonephritis
- EAcute interstitial nephritis
- FMinimal change disease
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