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
Thiopentone is C/I in – 
Select and explain. 
A. Acute intermittent porphyria, B. Bronchial asthma, C. Both, D. None
A: Acute intermittent porphyria
Answer: A: Acute intermittent porphyria 
Explanation: Thiopentone is contraindicated in acute intermittent porphyria.
It is contraindicated in status asthmaticus but not in simple asthma.