Acute Kidney Injury USMLE Step 1 Practice Question
A 5-year-old girl develops bloody diarrhea after consuming undercooked beef at a picnic. Three days later, she presents with pallor, decreased urine output, and petechiae. Vital signs show BP 95/62 mmHg, HR 118/min, RR 22/min, and temperature 37.2Ā°C. Laboratory studies reveal hemoglobin 7.2 g/dL with schistocytes on blood smear, platelet count 45,000/Ī¼L, and serum creatinine 2.8 mg/dL. Urinalysis shows no proteinuria. Which of the following is the most likely diagnosis?
Answer choices
- AMinimal change disease
- BGoodpasture syndrome
- CHemolytic uremic syndromeCorrect answer
- DAcute interstitial nephritis
- EDisseminated intravascular coagulation
- FThrombotic thrombocytopenic purpura
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