The patient's respirations dropped from 14 breaths/minute to 8 breaths/minute after receiving a large dose of morphine. Which term accurately describes the patient's reaction to the morphine?
Toxic
Allergic
Idiosyncratic
Therapeutic
The Correct Answer is A
Choice A reason: Respiratory depression from high morphine doses signals toxicity; opioids suppress the brainstem’s respiratory center, exceeding safe therapeutic levels at this extent.
Choice B reason: Allergic reactions involve immunity (e.g., rash, anaphylaxis); slowed breathing isn’t allergic, but a dose-dependent opioid effect on respiration.
Choice C reason: Idiosyncratic means unexpected (e.g., paradoxical excitement); respiratory depression is a predictable morphine overdose sign, not an unusual reaction.
Choice D reason: Therapeutic effects relieve pain; 8 breaths/minute is dangerously low, beyond intended analgesia, indicating a harmful, not beneficial, outcome.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Lisinopril is Zestril’s generic name; an ACE inhibitor, it’s widely used for hypertension, matching the context of a common medication order.
Choice B reason: Acetaminophen, a pain reliever, isn’t Zestril’s generic; it lacks antihypertensive action, making it irrelevant to the implied medication class.
Choice C reason: Morphine, an opioid, treats pain, not hypertension; it doesn’t align with Zestril’s purpose or class, ruling it out as the generic name.
Choice D reason: Fentanyl, another opioid, addresses pain, not blood pressure; it’s unrelated to Zestril’s therapeutic role, excluding it from consideration.
Correct Answer is B
Explanation
Choice A reason: 5 mL gives 125 mg; this underdoses the 175 mg order, reducing Ceclor’s antibacterial effect, risking persistent ear infection due to insufficient concentration.
Choice B reason: 7 mL is correct; 175 mg divided by 125 mg/5 mL equals 7 mL, delivering the exact cephalosporin dose for effective otitis media treatment.
Choice C reason: 10 mL provides 250 mg; this overdoses Ceclor, risking gastrointestinal upset or resistance, exceeding the therapeutic need for the infection safely.
Choice D reason: 14 mL yields 350 mg; this extreme overdose amplifies side effects like diarrhea or toxicity, far beyond the ordered 175 mg dose requirement.
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