This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anesthesia, Subject name: Pharmacology
A patient with ruptured spleen is taken for laparotomy. His blood pressure is 80/50 and hea rate is 125/min.Induction agent of choice for this patient is 
Select and explain. 
A. Sodium thiopentone, B. Fentanyl, C. Ketamine, D. Halothane
C: Ketamine
Answer: C: Ketamine 
Explanation: Refer Goodman Gilman 12/e p 538-539 Ketamine increases all pressures Blood pressure.. Intracranial tension Introcular pressure In the body ****it is therefore intravenous anesthetic of choice for shock