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: Anaesthesia
[{'content': 'In a 2 months old infant undergoing surgery for biliary atresia, you would avoid one of the following anaesthetic – \nSelect and explain. \nA. Thiopentone, B. Halothane, C. Propofol, D. Sevoflurane', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The child with biliary atresia will have hepatic dysfunction.\nSevoflurane, thiopentone and propofol are safe in liver disease.\nHalothane is not contraindicated in pre-existing liver :-\n\n"There is no compelling evidence associated with worsening of pre-existing liver disease". \n─Morgan\n"Pre-existing liver disease unrelated to halothane is not a contraindication to the use of halothane".\n—Lee 13th/e 143\n\nThough not a contraindication, halothane should be avoided in liver disease -\n\n"Potentialy hepatotoxic drug should be avoided".\n\xa0—Lee 55', 'role': 'assistant'}]