Organ System Pathology USMLE Step 1 Practice Question
A 4-year-old boy presents with periorbital and ankle edema. Vital signs show BP 105/68 mmHg, HR 98 bpm, RR 22/min, temp 37.2°C, SpO2 98% on room air. Urinalysis reveals 4+ proteinuria without hematuria or RBC casts. Serum albumin is 2.1 g/dL (normal 3.5-5.0), total cholesterol 285 mg/dL, and serum creatinine 0.8 mg/dL. Complement levels are normal. Which of the following is the most likely diagnosis?
Answer choices
- APoststreptococcal glomerulonephritis
- BMinimal change diseaseCorrect answer
- CAcute interstitial nephritis
- DRapidly progressive glomerulonephritis
- EIgA nephropathy
- FMembranoproliferative glomerulonephritis
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