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

Answer and Explanation

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.

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Correct Answer is D

Explanation

Choice A reason: Two-hour window (8:00-10:00) is too broad; most protocols allow 30 minutes before/after, as wider ranges risk altering drug pharmacokinetics significantly.

Choice B reason: One-hour window (8:30-9:30) is common but exceeds some strict policies; it’s less precise, potentially affecting drugs with tight timing needs.

Choice C reason: 8:30-9:00 is only before; it excludes post-9:00 flexibility, limiting administration to early dosing, which may not align with full protocol windows.

Choice D reason: 8:45-9:15 (30 minutes either side) fits standard policy; it ensures therapeutic levels for most drugs, balancing efficacy with practical scheduling.

A. Is most reliable in terms of onset. B. Is most convenient. C. Is best tolerated by clients. D. Ensures fast drug action.

Correct Answer is B

Explanation

Choice A reason: While reliability exists, the oral route is less predictable than IV administration due to variability in absorption caused by digestive factors, making it less reliable for rapid or consistent onset.

Choice B reason: Convenience is the primary advantage of oral administration. It allows ease of self-administration, enabling clients to manage their medications without healthcare provider intervention, making it the most frequently used route.

Choice C reason: While many clients tolerate oral medications well, others may face challenges, such as difficulty swallowing or gastric irritation, meaning tolerability varies and is not a universal advantage of this route.

Choice D reason: The oral route does not ensure fast action due to time required for digestion, absorption, and metabolism, making it slower compared to routes like IV or sublingual administration.

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A nurse is preparing to administer an intramuscular injection for a client of average weight. At what angle would the nurse insert the needle?

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Naxlex Comprehensive Predictor Exams

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Correct Answer is D

Explanation

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Correct Answer is B

Explanation

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