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The emergency department nurse is administering IV lidocaine to patients.
What adverse effect of lidocaine therapy should the nurse assess for?

Tinnitus.

Dizziness.

Dysphagia.

Excessive bruising.

Answer and Explanation

The Correct Answer is B

Choice A rationale

While tinnitus can occur with certain medications, it is not a common adverse effect of lidocaine.

Choice B rationale

Dizziness is a common adverse effect of lidocaine and can indicate an issue with its administration.

Choice C rationale

Dysphagia is not a typical adverse effect of lidocaine administration.

Choice D rationale

Excessive bruising is not associated with lidocaine but rather with anticoagulants or trauma.

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Correct Answer is D

Explanation

Choice A rationale

The half-life of a drug refers to the time it takes for the plasma concentration of a drug to reduce by half. It is not a primary consideration when substituting generic drugs for brand-name drugs.

Choice B rationale

Critical concentration is the amount of a drug needed to achieve therapeutic effects. While important, it is not the main factor in generic substitution.

Choice C rationale

Distribution describes how a drug is dispersed throughout the body's tissues and fluids. This factor is crucial for drug efficacy but not directly related to substituting generic drugs.

Choice D rationale

Bioavailability is the degree and rate at which an active drug ingredient is absorbed and becomes available at the site of action. Generic drugs must have the same bioavailability as brand-name drugs to ensure they are just as effective.

A. Pupil restriction. B. Decreased lacrimal secretions. C. Pupil dilation. D. Sedation.

Correct Answer is C

Explanation

Choice A rationale

Anticholinergic drugs do not cause pupil restriction; they relax the muscles around the eye, leading to dilation.

Choice B rationale

Decreased lacrimal secretions are a secondary effect of anticholinergics and not their primary purpose in ophthalmology.

Choice C rationale

Anticholinergics cause pupil dilation (mydriasis) by relaxing the muscles that constrict the pupil, allowing for a better examination of the eye's interior.

Choice D rationale

Sedation is not a primary effect of anticholinergics used in ophthalmology.

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The emergency department nurse is administering IV lidocaine to patients.What adverse effect of lidocaine therapy should the nurse assess for?

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Naxlex Comprehensive Predictor Exams

What concept is considered when generic drugs are substituted for brand-name drugs?

Correct Answer is D

Explanation

Anticholinergic drugs are used in Ophthalmology because they produce what effect?

Correct Answer is C

Explanation

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The emergency department nurse is administering IV lidocaine to patients.
What adverse effect of lidocaine therapy should the nurse assess for?