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
True about Halothane – a) Non irritantb) Antiarrhythmicc) It antagonizes bronchospasmd) Vasodilator 
Select and explain. 
A. abc, B. ad, C. bc, D. acd
D: acd
Answer: D: acd 
Explanation: Halothane is a nonirritant, non-inflammable volatile liquid. It antagonizes the bronchospasm in asthmatics.
Halothane directly dilates the vascular beds of the skin & brain.