This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
[{'content': "A premature neonate on top feeding develop abdominal distension and bleeding per rectum. He recently recovered from acute upper respiratory tract infection. What is the probable diagnosis – \nSelect and explain. \nA. Necrotizing enterocolitis, B. Valvulus, C. Meckel's diverticulum, D. Intussusception", 'role': 'user'}, {'content': 'Answer: A \nExplanation: This child is -\n\n\nPremature\nOn artificial feeding (top feeding)\nHaving abdominal distention and bleeding per rectum.\n\n\nAll these are suggestive of necrotizing enterocolitis :-\n\ni)\xa0The greatest risk factor, for necrotizing enterocolitis is prematurity. ____\xa0Nelson 18th /e 755\nii) Almost all patients of neonatal enterocolitis are artificially fed prior to the onset of illness.\niii) In stage I, there is abdominal distention and blood in stool.\n\n\nSo, the child in question is suffering from necrotizing enterocolitis.\n\nAbout other options\n\nThe hallmark of volvulus in neonatal period is bilious vomiting.\nIntussusception presents between the age of 3-9 months (not in neonatal period).\nSymptoms of Meckel diverticulum usually arise in the 1st 2 years of life (average 2.5 years) and most common presentation i4s painless rectal bleeding.', 'role': 'assistant'}]