GERD and Peptic Ulcer Disease USMLE Step 1 Practice Question
A 6-hour-old newborn with maternal polyhydramnios presents with coughing, cyanosis, and choking during first feeding attempt. Vital signs show HR 160/min, RR 52/min, SpO2 88% on room air, and temperature 36.8°C. A nasogastric tube cannot be advanced past 10 cm. Chest X-ray reveals coiled tube in upper mediastinum with no gastric air bubble. The infant has no abdominal distension. Which diagnosis best explains these findings?
Answer choices
- ADuodenal atresia
- BMalrotation with volvulus
- CEsophageal atresia with distal tracheoesophageal fistulaCorrect answer
- DHirschsprung disease
- EPyloric stenosis
- FTracheomalacia with secondary aspiration
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