Hepatobiliary Disease USMLE Step 1 Practice Question
A 2-day-old boy presents with bilious vomiting shortly after feeding attempts. Vital signs show HR 145 bpm, RR 32, temperature 37.2°C, BP 65/40. Prenatal ultrasound demonstrated polyhydramnios. Current abdominal radiograph reveals a classic double bubble sign with distal bowel gas. Laboratory studies show normal bilirubin levels. The infant denies passage of meconium. Which congenital syndrome is most strongly associated with this presentation?
Answer choices
- AMarfan syndrome
- BTurner syndrome
- CDown syndromeCorrect answer
- DFragile X syndrome
- EWilliams syndrome
- FPrader-Willi syndrome
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