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
Anaesthetic agent(s) safe to use in↑ICP – 
Select and explain. 
A. Halothane, B. Thiopentone, C. Ketamine, D. Ether
B: Thiopentone
Answer: B: Thiopentone 
Explanation: All IV inducing agents (including thiopentone) except for ketamine decrease ICT.
Ketamine increases ICT.
Inhalational agents (Ether, Halothane) increase ICT.