Identify a reason a narcotic agent may be prescribed.

Choice A rationale

Cholinergic agonists primarily stimulate the parasympathetic nervous system rather than the central nervous system, affecting activities like digestion, salivation, and decreased heart rate.

Choice B rationale

Parasympathetic nervous system is the correct answer. Cholinergic agonists mimic acetylcholine and stimulate parasympathetic responses, promoting rest-and-digest functions such as reducing heart rate and enhancing glandular secretions.

Choice C rationale

The sympathetic nervous system is not stimulated by cholinergic agonists. Instead, this system is activated by adrenergic agonists, which prepare the body for fight-or-flight responses, increasing heart rate and blood pressure.

Choice D rationale

Voluntary nervous system control is not the primary target of cholinergic agonists. This system governs skeletal muscle movement and is influenced by neuromuscular junctions rather than the autonomic responses modulated by cholinergic drugs. .

Choice A rationale

Evidence of human fetal risk would categorize the drug as Category D or X, not Category B.

Choice B rationale

This statement aligns more with Category C drugs, where animal studies show adverse effects, but not Category B.

Choice C rationale

This describes Category A drugs, not Category B.

Choice D rationale

Category B drugs have shown no risk in animal studies but lack adequate human studies, fitting this description.