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': 'One of the intestinal enzymes that is generally deficient in children following an attack of severe infectious enteritis is - \nSelect and explain. \nA. Lactase, B. Trypsin, C. Lipase, D. Amylase', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Lactase `Because Lactase activity in the mucosa is at best marginal, this enzyme is paicularly likely to be depleted secondary to diffuse mucosal disease' - Nelson Causes of Acquired Lactase deficiency 1. Acute Infective enteritis 2. Cystic fibrosis 4. Cow's milk protein intolerance 3. Protein energy malnutrition 5. Prolonged use of drugs like Neomycin. Viral gastroenteritis Bacterial gastroenteritis", 'role': 'assistant'}]