In addition to the dorsogluteal and ventrogluteal muscles, which of these sites can safely be used for intramuscular injections?

Deltoid and vastus lateralis

Upper chest and abdomen

Inner forearm and scapular area of the back

Lower leg

Answer and Explanation

The Correct Answer is A

Choice A reason: Deltoid and vastus lateralis are large muscles with good vascularity; they safely absorb IM injections, minimizing nerve damage or tissue irritation risks.

Choice B reason: Chest and abdomen lack sufficient muscle mass for IM; these are subcutaneous or IV sites, risking poor absorption or injury if used intramuscularly.

Choice C reason: Forearm and scapula are too thin or bony; IM injections here risk nerve or bone damage, lacking the muscle bulk needed for safe drug delivery.

Choice D reason: Lower leg (e.g., calf) has small muscles and major vessels; IM use risks vascular injury or slow absorption, making it an unsafe injection site.

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Correct Answer is B

Explanation

Choice A reason: Separate syringes increase injection sites and patient discomfort; mixing is standard as Regular and NPH are compatible, optimizing insulin delivery efficiency and absorption.

Choice B reason: Drawing Regular (clear) before NPH (cloudy) in one syringe prevents contamination of the short-acting vial with the intermediate-acting insulin, ensuring accurate dosing and stability.

Choice C reason: Shaking insulin damages its structure; NPH requires gentle rolling to mix, while Regular needs no mixing, making vigorous shaking inappropriate for preparation.

Choice D reason: Drawing NPH first risks contaminating the Regular vial with NPH particles, altering its rapid action; the clear-to-cloudy sequence maintains insulin integrity and efficacy.

A. Dissolving it in juice. B. Mixing it in applesauce or soft food. C. Adding it to water. D. Sprinkling it on meat or vegetables.

Correct Answer is B

Explanation

Choice A reason: Juice may alter absorption; liquid can dilute or degrade some drugs, and taste may deter intake, reducing effectiveness compared to soft food.

Choice B reason: Applesauce masks taste and aids swallowing; it ensures crushed medication is consumed fully, maintaining dose integrity without altering pharmacokinetics significantly.

Choice C reason: Water may not mask bitterness; some drugs dissolve poorly or lose potency, and patients may not finish it, risking incomplete dosing.

Choice D reason: Meat or vegetables may bind drugs; uneven distribution or strong flavors could reduce intake, compromising the full therapeutic dose delivery.

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In addition to the dorsogluteal and ventrogluteal muscles, which of these sites can safely be used for intramuscular injections?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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Explanation

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Correct Answer is B

Explanation

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