This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Intravenous Anesthetic Agents, Subject name: Anaesthesia
All of the following causes decrease in CMRO2, CBF and ICP except:- 
Select and explain. 
A. Thiopentone, B. Propofol, C. Ketamine, D. Etomidate
C: Ketamine
Answer: C: Ketamine 
Explanation: Ketamine increases CMRO2, CBF and ICP because it is sympathomimetic. CBF ICP CMRO2 Seizure Thiopentone ||| ||| ||| ||| Ketamine || || | | propofol ||| ||| ||| | etomidate ||| ||| ||| |