Vistaril 75 mg IM is ordered for anxiety. Available: 50 mg/mL. How many milliliters will the nurse administer?

1 mL

1.5 mL

2 mL

2.5 mL

Answer and Explanation

The Correct Answer is B

Choice A reason: 1 mL gives 50 mg; this underdoses the 75 mg order, reducing Vistaril’s sedative effect, risking inadequate anxiety relief for the patient.

Choice B reason: 1.5 mL is correct; 75 mg divided by 50 mg/mL equals 1.5 mL, delivering the precise IM dose for effective anxiolytic action safely.

Choice C reason: 2 mL provides 100 mg; this overdoses Vistaril, risking excessive sedation or hypotension, exceeding the ordered therapeutic amount unnecessarily.

Choice D reason: 2.5 mL yields 125 mg; this far exceeds 75 mg, amplifying side effects like drowsiness or respiratory depression, unsafe for anxiety management.

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Correct Answer is A

Explanation

Choice A reason: Classifications like “analgesics” pair effects (pain relief) with symptoms (pain); this pharmacological basis groups drugs by therapeutic purpose and mechanism.

Choice B reason: Dosage varies within classes; it’s not a defining trait, as classifications focus on action (e.g., beta-blockers), not specific amounts administered.

Choice C reason: Tolerance is patient-specific, not a classification criterion; drugs are grouped by effect and symptom relief, not individual response variations.

Choice D reason: Nursing implications guide administration, not classification; categories stem from pharmacology (e.g., antihypertensives), not care protocols or implications.

A. Topical B. Oral C. Buccal D. Sublingual

Correct Answer is C

Explanation

Choice A reason: Topical applies to skin or mucous surfaces broadly; gum/jaw placement is specific to buccal, not the general external or mucosal topical category.

Choice B reason: Oral means swallowed; buccal drugs stay in the mouth for absorption, avoiding the digestive tract, making this an incorrect route classification.

Choice C reason: Buccal involves placement between gum and cheek; it allows direct mucosal absorption into the bloodstream, bypassing first-pass metabolism effectively.

Choice D reason: Sublingual is under the tongue; gum/jaw specifies buccal, as sublingual targets a different oral site with distinct absorption dynamics.

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Vistaril 75 mg IM is ordered for anxiety. Available: 50 mg/mL. How many milliliters will the nurse administer?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

When categorizing medications, drug classifications may be defined by the effects of the drug and:

Correct Answer is A

Explanation

The nurse explains to a client that the drug administration of a medication is to be placed between the gum and jaw. By which route is the nurse administering this medication?

Correct Answer is C

Explanation

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