A student asks the pharmacology instructor to explain the action of anticholinergic agents.
What would be the instructor's best response?
They compete with serotonin for muscarinic acetylcholine receptor sites.
They increase norepinephrine at the neuromuscular junction.
They block nicotinic receptors.
They act to block the effects of the parasympathetic nervous system.
The Correct Answer is D
Choice A rationale
Serotonin does not compete with anticholinergic agents at muscarinic acetylcholine receptor sites; anticholinergics target these receptors to inhibit the parasympathetic nervous system.
Choice B rationale
Anticholinergics do not increase norepinephrine at the neuromuscular junction.
Choice C rationale
Nicotinic receptors are primarily affected by different classes of drugs, such as neuromuscular blockers.
Choice D rationale
Anticholinergics inhibit the actions of the parasympathetic nervous system by blocking muscarinic receptors, reducing bodily functions like saliva production, digestion, and urination.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale
Asking the patient what time of day the medication is taken can help identify if taking it at a different time might alleviate sleep disturbances. SSRIs like sertraline can cause insomnia if taken later in the day.
Choice B rationale
Recommending a weekly dosage is inappropriate and could potentially disrupt the therapeutic effect. SSRIs should be taken daily, as prescribed.
Choice C rationale
Counseling the patient to take the medication at bedtime could worsen sleep disturbances, as sertraline may cause insomnia in some individuals. Timing should be adjusted based on patient response.
Choice D rationale
Suggesting a lower dose without consulting the provider may not address the issue effectively and could reduce the efficacy of the medication. Dosage adjustments should be made based on clinical assessment and provider recommendation.
Correct Answer is A
Explanation
Choice A rationale
Ineffective health maintenance is appropriate due to the patient's inability to provide names and purposes of medications, indicating insufficient knowledge of their regimen.
Choice B rationale
Noncompliance implies intentional refusal of medication, which is not evident here as the patient is unaware rather than refusing.
Choice C rationale
Acute confusion is not indicated as the patient appears oriented and not disoriented.
Choice D rationale
Risk-prone health behavior is not appropriate as it suggests engagement in harmful activities, which is not described.
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