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
Hyperkalemia is seen with succinylcholine , in all of the following cases except 
Select and explain. 
A. Tetanus, B. Burns, C. Myasthenia gravis, D. Muscular dystrophy
C: Myasthenia gravis
Answer: C: Myasthenia gravis 
Explanation: Myasthenia gravis patients are resistant to action of succinylcholine, since depolarizing blocker cannot act in them.