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

Answer and Explanation

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.

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Correct Answer is B

Explanation

Choice A rationale: Nasal congestion is a common side effect of alpha1-adrenergic blockers, not a cause for concern.
Choice B rationale: Orthostatic hypotension is a potential adverse effect of alpha1- adrenergic blockers like prazosin. It can lead to dizziness and falls, particularly when moving from a lying or sitting position to a standing one.
Choice C rationale: Inhibition of ejaculation is a potential side effect of alpha1- adrenergic blockers but is not of the most concern compared to orthostatic hypotension.
Choice D rationale: Reflex tachycardia is not a typical adverse effect of alpha1- adrenergic blockers.

A. CYP450 genetic variants. B. HLA-B genetic variants. C. latent hepatitis B virus. D. Blood type and crossmatch.

Correct Answer is C

Explanation

Choice A rationale: Testing for CYP450 genetic variants is more relevant for medications metabolized by the cytochrome P450 system.
Choice B rationale: HLA-B genetic variants are more associated with certain drug hypersensitivity reactions, not specifically for etanercept.
Choice C rationale: Etanercept can increase the risk of reactivating latent infections, including hepatitis B. Screening for latent hepatitis B virus is essential before starting therapy.
Choice D rationale: Blood type and crossmatch are not typically required for starting etanercept therapy.

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The nurse is administering diphenhydramine (Benedryl), a neuropharmacologic agent that works by doing what?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A patient is receiving Prazosin, a drug that blocks alpha1-adrenergic receptors. Which adverse effect, if experienced by the patient, is of most concern to the nurse?

Correct Answer is B

Explanation

A patient diagnosed with rheumatoid arthritis is about to begin therapy with Etanercept, a tumor necrosis factor antagonist. The nurse anticipates the patient will be tested for

Correct Answer is C

Explanation

Alprazolam (Xanax) is prescribed for an adult with panic attacks. The nurse recognizes that this drug exerts its therapeutic effect by interacting with which neurotransmitter?

The client with osteopenia (low bone mass) has been prescribed calcium supplementation. Teaching for reducing risk of osteoporosis will include:

A patient who drinks more than 10 alcoholic beverages per day is admitted to the hospital. Twelve hours after admission, the nurse should assess the patient for abstinence syndrome which manifests as 1 2 3

A nurse administers a medication that activates dopamine receptors. The nurse should assess the patient for which intended effect: 1/2.

A client is prescribed the dopamine agonist pramipexole. Which statement made by the patient indicates a need for further teaching?

A patient is prescribed phenytoin for epileptic seizures. Which of the following is the priority for patient teaching?

The nurse will suspect a disulfiram reaction (acetaldehyde syndrome) in a client with alcohol use disorder (AUD) with the following assessment findings:

A client diagnosed with osteoporosis will begin taking alendronate. The nurse will teach this patient to take the