A nurse is teaching a client about taking diphenhydramine. The nurse should explain to the client that which of the following is an adverse eﬀect of this medication?

Headache

Constipation

Bradycardia

Hypertension

Answer and Explanation

The Correct Answer is B

The correct answer is choice b. Constipation.

Choice A rationale:

While headaches can occur with some medications, they are not a common adverse effect of diphenhydramine. Diphenhydramine's typical side effects are more related to its anticholinergic properties.

Choice B rationale:

Diphenhydramine is an antihistamine with anticholinergic effects, which can lead to dry mouth, urinary retention, and constipation as common adverse effects.

Choice C rationale:

Diphenhydramine typically does not cause bradycardia. In some cases, it may cause tachycardia (increased heart rate) rather than a slower heart rate.

Choice D rationale:

Hypertension is not typically associated with diphenhydramine. In fact, it can sometimes cause hypotension (low blood pressure) rather than high blood pressure.

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Correct Answer is C

Explanation

Sublingual and buccal medications are rapidly absorbed because they are placed under the tongue or between the cheek and gum, where they dissolve and are absorbed directly into the bloodstream through the mucous membranes in the mouth. This allows for rapid absorption and bypasses the liver’s first-pass metabolism.

A. I can take an over-the-counter antihistamine for allergies when I’m taking this drug B. I should take this medication when my spasms are bad. C. My muscle strength should improve a lot in 2 to 3 days D. I need to apply a sunscreen when I go outside

Correct Answer is D

Explanation

The correct answer is choice d. I need to apply a sunscreen when I go outside.

Choice A rationale:

Taking over-the-counter antihistamines with dantrolene is not recommended because both can cause drowsiness and increase the risk of side effects.

Choice B rationale:

Dantrolene should be taken regularly as prescribed, not just when spasms are bad, to maintain consistent therapeutic levels and effectiveness.

Choice C rationale:

Muscle strength improvement with dantrolene may take longer than 2 to 3 days. It typically requires a few weeks to see significant benefits.

Choice D rationale:

Dantrolene can cause photosensitivity, making the skin more sensitive to sunlight. Therefore, applying sunscreen when going outside is important to prevent sunburn.

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A nurse is teaching a client about taking diphenhydramine. The nurse should explain to the client that which of the following is an adverse eﬀect of this medication?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Why are sublingual and buccal medications rapidly absorbed?

Correct Answer is C

Explanation

A nurse is teaching a client who has multiple sclerosis and a new prescription for dantrolene. Which of the following statements by the client indicates an understanding of the teaching?

Correct Answer is D

Explanation

A nurse is caring for a client who has tuberculosis and new prescriptions for rifampin and pyrazinamide. Which of the following laboratory tests should the nurse instruct, the client will be required while on this medication regimen?

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