Metabolism USMLE Step 1 Practice Question
A 8-year-old boy presents with hepatomegaly, bilateral renal enlargement, gout, and eruptive xanthomas. Vital signs show BP 118/76 mmHg, HR 102/min, RR 20/min, temperature 37.2°C, SpO2 98% on room air. Laboratory studies reveal serum uric acid 9.2 mg/dL and abdominal ultrasound shows increased hepatic echogenicity with normal spleen. He denies polyuria. Genetic testing confirms glucose-6-phosphatase deficiency. Which additional laboratory findings would you expect?
Answer choices
- ALow, High, HighCorrect answer
- BHigh, High, Low
- CHigh, Low, Low
- DHigh, High, High
- ELow, Low, Low
- FLow, Low, High
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