NSG318 NSG 318 EXAM 2

NSG318 / NSG 318 EXAM 2

Introduction to Pharmacology - GCU Actual Questions and Answers 100% Guarantee Pass

This Exam contains:

 100% Guarantee Pass. Multiple-Choice (A–D), For Each Question. Each Question Includes The Correct Answer  Expert-Verified explanation

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Which medication would the nurse plan on educating the patient about if the nurse notes from the patient's chart that the primary health care provider is considering adding a tricyclic antidepressant (TCA) to the patient's treatment regimen?

• Doxepin
• Trazodone
• Amoxapine
• Maprotiline

Correct Answer: A. Doxepin

Expert Rationale: Doxepin is classified as a tricyclic antidepressant (TCA),

which functions by inhibiting the reuptake of norepinephrine and serotonin in the central nervous system, thereby enhancing neurotransmitter levels and improving mood. Trazodone is classified as a serotonin antagonist and reuptake inhibitor (SARI), not a TCA. Amoxapine and maprotiline, though sometimes categorized with TCAs due to structural similarities, have atypical profiles and are less commonly used as prototypical TCAs. Thus, education would primarily focus on doxepin when a TCA is ordered.

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Which medication does the nurse anticipate administering to a patient with a suspected overdose of oxazepam?

• Naloxone 2 / 4

• Naltrexone
• Nalmefene
• Flumazenil

Correct Answer: D. Flumazenil

Expert Rationale: Oxazepam is a benzodiazepine. Flumazenil acts as a

specific benzodiazepine receptor antagonist and is used as an antidote in benzodiazepine overdose by competitively inhibiting the action of benzodiazepines at GABA receptor sites. Naloxone, naltrexone, and nalmefene are opioid antagonists and are not effective for benzodiazepine toxicity.

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Which system would the nurse assess to determine whether bethanechol has had a therapeutic effect?

• Gastric
• Urinary
• Muscular
• Neurologic

Correct Answer: B. Urinary

Expert Rationale: Bethanechol is a direct-acting cholinergic agonist

primarily indicated for the management of postoperative and postpartum 3 / 4

nonobstructive urinary retention. Assessment of therapeutic effect is based upon improved urinary output and bladder emptying, reflecting the drug's action on the detrusor muscle of the bladder.

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By which age do the processes of gastric emptying and gastrointestinal (GI) motility, which are unpredictable in neonates and infants, approach those of adults?

• 6–8 months
• 9–10 months
• 11–12 months
• 13–14 months

Correct Answer: A. 6–8 months

Expert Rationale: Infants demonstrate variable and delayed gastric

emptying and gastrointestinal motility due to immature digestive function.Studies show that these processes begin to approximate adult patterns by 6–8 months of age, impacting drug absorption and pharmacokinetics.

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Which action is recommended to reduce the chances of drug toxicity in older adult patients?

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