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': 'Which of the following is not true about etomidate - \nSelect and explain. \nA. It is an intravenous anaesthetics, B. It precipitates coronary insufficiency, C. It inhibits coisol synthesis, D. It causes pain at injection site', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., It precipitates coronary insufficiency o It produces little cardiovascular and respiratory depression -4 Agent of choice for cardiovascular surgeries (bypass, aneurysms, valve surgery). Coronary perfusion pressure is maintained when it is used with fentanyl.", 'role': 'assistant'}]