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 true about sodium Thiopentone except:- 
Select and explain. 
A. It is ultrasho acting barbiturate, B. It is cerebroprotective, C. It is induction agent of choice in neurosurgery, D. It is contraindicated in acute intermittent porphyria
C: It is induction agent of choice in neurosurgery
Answer: C: It is induction agent of choice in neurosurgery 
Explanation: Thiopentone is cerebroprotective but not agent of choice for neurosurgery. It is obsolete drug in anaesthesia and at most of the centres it has been replaced by Propofol. Two Non Anaesthetic use 1. Narcoanalysis 2. neuroprotection