This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous General Anesthesia, Subject name: Anaesthesia
Thiopentone is contraindicated in : 
Select and explain. 
A. Acute intermitent porphyria, B. Induction of GA., C. CHF, D. GI disease
A: Acute intermitent porphyria
Answer: A: Acute intermitent porphyria 
Explanation: Ans. is 'a' i.e. Acute Intermittent porphyria Barbiturates (Thiopentone) ppt acute intermittent porphyria