The nurse is administering diphenhydramine (Benedryl), a neuropharmacologic agent that works by doing what?
Preventing mast cells from releasing histamine
Preventing receptor activation by binding to histamine receptors
Prevent axonal conduction
Promote receptor activation to H1 histamine receptors
The Correct Answer is B
Choice A rationale: Diphenhydramine blocks the action of histamine by binding to H1 receptors, rather than preventing its release from mast cells.
Choice B rationale: Diphenhydramine works by blocking the activation of histamine receptors, preventing the effects of histamine.
Choice C rationale: Diphenhydramine is not involved in preventing axonal conduction.
Choice D rationale: Diphenhydramine is an H1 receptor antagonist and does not promote receptor activation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale: Disorientation and hallucinations are not common side effects of fluoxetine. These symptoms may indicate other issues and should be reported to the healthcare provider.
Choice B rationale: Sexual side effects, including a potential decrease in interest in sex, are known side effects of fluoxetine. The statement suggesting enhanced interest is not accurate.
Choice C rationale: Fluoxetine, like other selective serotonin reuptake inhibitors (SSRIs), may take 3 to 4 weeks or even longer for the full therapeutic effect to be achieved.
Choice D rationale: Abruptly stopping fluoxetine is not recommended and can lead to withdrawal symptoms. The medication should be tapered under the guidance of a healthcare provider.
Correct Answer is B
Explanation
Choice A rationale: Physical dependence is a state where the body has adapted to the presence of the opioid, and abrupt cessation may lead to withdrawal symptoms. However, the patient's statement indicates tolerance more than physical dependence.
Choice B rationale: The patient is at risk for tolerance, which is the need for an increased dose of a substance to achieve the same effect. This is common in chronic opioid therapy.
Choice C rationale: Abstinence syndrome is another term for withdrawal syndrome, and this is more associated with sudden cessation of opioids.
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