A patient is suspected of having myasthenia gravis crisis. A small dose of tubocurarine is administered, and the patient develops increased muscle weakness. The nurse should prepare to administer immediately which class of medication?
a. A calcium channel blocker
b. A dopamine agonist
c. Sympathetic stimulant
d. Cholinesterase inhibitor
D
The patient displays muscle weakness, which is an adverse effect of the tubocurarine and may precipitate respiratory degradation. The patient is experiencing a cholinergic crisis, and the nurse should administer an antagonist, such as a cholinesterase inhibitor.
A calcium channel blocker would not reverse the effects of tubocurarine.
A dopamine antagonist would not be indicated to reverse the effects of the tubocurarine.
A sympathetic stimulant would not be indicated to reverse the effects of the tubocurarine.
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