Acute Kidney Injury USMLE Step 1 Practice Question
A 6 year old boy is brought to the clinic for facial puffiness and swelling of the legs for 1 week. He had an upper respiratory infection 2 weeks ago. Physical examination shows periorbital edema and pitting edema of both ankles. Urinalysis shows 4+ protein with no hematuria. Serum albumin is low and serum creatinine is normal. Renal biopsy demonstrates normal glomeruli on light microscopy and diffuse effacement of podocyte foot processes on electron microscopy. Which of the following is the most likely diagnosis?
Answer choices
- AIgA nephropathy
- BPoststreptococcal glomerulonephritis
- CMinimal change diseaseCorrect answer
- DMembranous nephropathy
- EFocal segmental glomerulosclerosis
- FMembranoproliferative glomerulonephritis with complement-driven GBM splitting
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