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: Pharmacology
[{'content': 'The anaesthetic agent which should NOT be used in a patient with previous history of halothane induces hepatitis is: \nSelect and explain. \nA. Methoxyflurane, B. Sevoflurane, C. Isoflurane, D. Ketamine', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Halothane causes idiosyncratic type liver injury. It is genetically predisposed. Jaundice is usually noted 7-10 days after the exposure. Because of the cross reaction between halothane and methoxyflurane, it should not be used in a patient with halothane reaction. Ref: Harrison, Edition-18, Page-2564', 'role': 'assistant'}]