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: Pharmacology
Diagnosis of Myasthenia Gravis is by using - 
Select and explain. 
A. Edrophonium, B. Neostigmine, C. Succinylcholine (SCh), D. Atropine
A: Edrophonium
Answer: A: Edrophonium 
Explanation: Ans. is 'a' i.e., Edrophonium Edrophonium (anticholinesterase) injected slowly i.v improves muscle strength only in myaesthenia gravis and not in other muscular dystrophies.