Patients with myasthenia gravis given edrophonium,an antagonist of cholinesterase,show:

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Edrophonium is a short-acting cholinesterase inhibitor that increases the availability of acetylcholine at the neuromuscular junction, thereby improving muscle strength in patients with myasthenia gravis. This effect is temporary and lasts for a few minutes. Aggravation of symptoms (A) or complete paralysis (B) would not be expected with edrophonium. Reduced levels of circulating antibodies (D) or reduced calcium in blood (E) are not directly related to the mechanism of action of edrophonium.

Patients with Myasthenia Gravis Given Edrophonium,an Antagonist of Cholinesterase,show