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': 'Intractable diarrhoea in children is caused by all except- \nSelect and explain. \nA. Cystic fibrosis, B. Giardiasis, C. Secreting tumors, D. Milk allergy', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Giardiasis Intractable diarrhea o Intractable diarrhea is defined as, chronic or recurring diarrhea not obviously or early diagnosed as to etiology. o Chronic diarrhea is defined as diarrhea lasting > 4 weeks. Intractable diarrhea is caused by ? o Cystic fibrosis o Congenital enterokinase & Trypsinogen deficiencies o Bile duct atresia o Food protein sensitivity (Cow's milk protein intolerance) o Abetalipoproteinemia o Carbohydrate intolerance o Secretory diarrhoea o Diarrhoea due to exocrine pancreas deficiency Giardiasis causes infectious type of diarrhea which responses to antiprotozoal therapy.", 'role': 'assistant'}]