This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NEET 2019, Subject name: Pharmacology
Inhalational anesthetic with highest respiratory irritation is:- 
Select and explain. 
A. Desflurane, B. Nitrous oxide, C. Sevoflurane, D. Halothane
A: Desflurane
Answer: A: Desflurane 
Explanation: Max respiratory irritation:- Desflurane MAC of Nitrous Oxide: >104% Smooth inducing agent, preferred in children : Sevoflurane Halothane:- Sensitize hea to arrythmogenic agent( Eg:- Ardenaline). Therefore contraindicated in pheochromocytoma