Vecuronium will be administered to a surgical patient to facilitate intubation and achieve balanced anesthesia. This medication induces paralysis by
A) antagonizing acetylcholine receptors at neuromuscular junctions.
B) potentiating the effects of acetylcholinesterase in synapses.
C) crossing the blood–brain barrier and agonizing cerebellar function.
D) binding with serotonin and inhibiting its neuromuscular effects.
A
Feedback:
Because vecuronium is structurally similar to ACh, it binds to the receptors on the muscle and prevents normal function of ACh, producing skeletal muscle paralysis. The drug does not influence the physiology of serotonin, the cerebellum, or acetylcholinesterase.
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