This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anaesthesia, Subject name: Pharmacology
[{'content': 'A patient with ruptured spleen is taken for laparotomy. His blood pressure is 80/50 and heart rate is 125/min. Induction agent of choice for this patient is: \nSelect and explain. \nA. Sodium Thiopentone, B. Fentanyl, C. Ketamine, D. Halothane', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. (C) Ketamine(Ref: Goodman and Gilman 12th/e p538-539)Ketamine increases all pressures (blood pressure, intracranial tension, intraocular pressure) in the body. It is therefore intravenous anesthetic of choice for shock (increases blood pressure).', 'role': 'assistant'}]