When the nurse administers a drug that stimulates the nicotinic receptors, what manifestation would indicate the drug is working?
A) Increased gastrointestinal (GI) motility
B) Decrease in heart rate
C) Muscle contraction
D) Pupil constriction
C
Feedback:
Nicotinic receptors are located in the central nervous system (CNS), the adrenal medulla, the autonomic ganglia, and the neuromuscular junction. Stimulation of nicotinic receptors causes muscle contractions, autonomic responses, and release of norepinephrine from the adrenal medulla. Increased GI motility, decreased heart rate, and pupil constriction are the result of stimulation of the muscarinic receptors.
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