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': 'A patient presented with blunt trauma to the abdomen to the emergency department. His heart rate is 150/min and his BP is 80/50 mm Hg. He is scheduled to undergo an emergency laparotomy. Which of the following is the anaesthetic agent of choice ? \nSelect and explain. \nA. Thiopentone, B. Midazolam, C. Ketamine, D. Propofol', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Inducing agents of choice patients with hypotension are Ketamine and Etomidate\xa0:-\n(1) If the patient is hypertensive at the time of induction → Etomidate is preferable.\n(2) If the patient is normotensive or mild hypotensive → Either of two can be used.\n(3)\xa0If the patient is severely hypotensive → Ketamine is preferred.', 'role': 'assistant'}]