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
Myasthenics are resistant to following muscle relaxant – 
Select and explain. 
A. Suxamethonium, B. Pancurium, C. Atracuronium, D. Vecuronium
A: Suxamethonium
Answer: A: Suxamethonium 
Explanation: Mysthenic patient

Resistant to depolarizing blocker (Sch)
Hypersensitive to non deplarizing blocker.