A nurse is preparing to administer an intramuscular injection for a client of average weight. At what angle would the nurse insert the needle?
90-degree
45-degree
15-degree
25-degree
The Correct Answer is A
Choice A reason: IM injections use a 90-degree angle; this ensures deep muscle penetration for average-weight adults, optimizing drug absorption into vascular tissue.
Choice B reason: 45 degrees is for subcutaneous injections; it’s too shallow for IM, risking fat deposition instead of muscle, reducing efficacy in this context.
Choice C reason: 15 degrees is far too shallow; it’s not a standard angle, likely depositing drug in skin layers, failing to reach muscle for intended absorption.
Choice D reason: 25 degrees mimics subcutaneous; it doesn’t reach muscle depth, compromising IM delivery and therapeutic effect in an average-weight client.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Consulting ensures safety; not all drugs can be altered, and the provider adjusts the order, preventing errors in bioavailability or efficacy.
Choice B reason: Liquid may work, but without approval, it’s unauthorized; some drugs lack liquid forms, and this bypasses necessary prescriber oversight.
Choice C reason: Parenteral needs an order change; administering without it violates scope, and it’s invasive, escalating care unnecessarily as a first step.
Choice D reason: Crushing alters pharmacokinetics; many tablets (e.g., extended-release) can’t be crushed, and doing so without checking risks toxicity or inefficacy.
Correct Answer is A
Explanation
Choice A reason: Alcohol and hepatitis C impair liver function; acetaminophen’s metabolite NAPQI accumulates, causing hepatotoxicity in an already compromised organ.
Choice B reason: COPD and smoking affect lungs, not liver; acetaminophen metabolism is minimally impacted, posing lower hepatic risk compared to liver disease states.
Choice C reason: Renal disease affects drug excretion, not liver metabolism; acetaminophen’s hepatic load is unchanged, making liver damage less likely here.
Choice D reason: Prostate issues involve urinary tract; liver metabolism of acetaminophen remains intact, with no heightened risk of hepatotoxicity from this condition.
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