This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Disorders of Gastrointestinal System Including Diarrhea, Subject name: Pediatrics
[{'content': 'Which one of the following is most suggestive of neonatal small bowel obstruction: \nSelect and explain. \nA. Generalized abdominal distension, B. Failure to pass meconium in the first 24 hours, C. Bilious vomiting, D. Refusal of feeds', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Bilious vomiting is the most common symptom of intestinal obstruction in newborn Proximal obstruction- history of polyhydramnios is common Obstruction high in the intestinal tract results in frequent, bilious emesis with little or no abdominal distention. Distal obstruction- Abdominal distension and constipation are more common, while vomiting is less common. In neonates proximal intestinal obstruction are more common. So, bilious vomiting is the most common presentation of neonatal intestinal obstruction.', 'role': 'assistant'}]