Diagnosis of myasthenia gravis is done by using:
Edrophonium
Neostigmine
Succinylcholine
Atropine
Ans. (A) Edrophonium(Ref: KDT 8th/e p120-121)Myasthenia gravis can be differentiated from cholinergic crisis with the help of a short acting anticholinesterase agent, edrophonium. It improves the symptoms in myasthenia gravis whereas worsens the condition in cases of cholinergic crisis. Neostigmine is used for the treatment of myasthenia.
A.N.S.