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': 'Which one of the following agents sensitizes the myocardium to catecholamines? \nSelect and explain. \nA. Ether, B. Propofol, C. Isoflurane, D. Halothane', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Halothane is an inhalational anaesthetic which sensitizes the myocardium to catecholamines and it produce severe ventricular arrhythmias. Other cardiovascular effects of halothane includes: 1.depression of myocardial contractility, 2.fall in blood pressure and cardiac output, and 3.predisposition to the development of re entrant tachyarrhythmias. Ref: Essentials of Medical Pharmacology By K D Tripathi, 5th Edition, Pages 339-40, 343.', 'role': 'assistant'}]