The nurse is preparing to give an intramuscular (IM) injection. Which of the following sites has the maximum risk of injury to major nerves?

1. A

   Deltoid

2. B

   Dorsogluteal

3. C

   Ventrogluteal

4. D

   Vastus lateralis

Appeared in: NORCET 10 Mains

Explanation

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• The dorsogluteal site poses the highest risk of injury to a major nerve during an IM injection.
• This site is in close proximity to the sciatic nerve, the largest and longest nerve in the body.
• Accidental injection into or near the sciatic nerve can result in severe, radiating pain, temporary or permanent paralysis of the leg, and complications such as foot drop.
• Due to this significant and unacceptable risk, modern nursing practice no longer recommends the use of the dorsogluteal site for IM injections.

Why Other Options Were Wrong

• Option A: While the deltoid site has a risk of injury to the radial and axillary nerves, this risk is considered lower than the risk of sciatic nerve injury at the dorsogluteal site. The deltoid muscle is also smaller, limiting its use to low-volume injections.
• Option C: The ventrogluteal site is considered the safest site for IM injections. It is located away from major nerves and blood vessels, making the risk of nerve injury extremely low.
• Option D: The vastus lateralis site is also a very safe option, with no major nerves or blood vessels in the recommended injection area. The risk of nerve injury is minimal.

Related Visual

• Visual 1: Diagram - Anatomic illustration showing the four major IM injection sites (Deltoid, Dorsogluteal, Ventrogluteal, Vastus Lateralis) with the location of major nerves and blood vessels clearly marked. This visual would highlight the proximity of the sciatic nerve to the dorsogluteal site.
• Visual 2: Diagram - A close-up view of the gluteal area demonstrating the correct landmarking technique for the ventrogluteal site versus the incorrect and risky dorsogluteal site.

Clinical Relevance

• Nursing practice connection: Knowing Risks associated with different intramuscular (IM) injection sites helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
• Proper site selection is a critical nursing responsibility to ensure patient safety and prevent iatrogenic (treatment-caused) injury during medication administration.
• The universal shift in practice from the dorsogluteal to the ventrogluteal site is a key example of how evidence-based practice changes clinical standards to improve patient outcomes and reduce harm.
• A nurse must always assess the patient's muscle mass, age, and the volume/type of medication before selecting an injection site.

How to Approach the Question

• Step 1: Identify the core of the question. It asks to find the IM injection site with the 'maximum risk' of nerve injury.
• Step 2: Systematically recall the anatomy associated with each of the four listed injection sites.
• Step 3: Specifically, retrieve knowledge about the major nerves that pass near each site: Deltoid (radial/axillary nerves), Dorsogluteal (sciatic nerve), Ventrogluteal (no major nerves), and Vastus Lateralis (no major nerves in the injection zone).
• Step 4: Compare the significance of these nerves. The sciatic nerve is the largest nerve in the body, and injury to it carries the most severe consequences (e.g., paralysis, foot drop).
• Step 5: Conclude that the site with the highest risk is the one closest to the most significant nerve, which is the dorsogluteal site.

Concept Tested & Keywords

• Concept Tested: Risks associated with different intramuscular (IM) injection sites
• Stem keywords: intramuscular (IM) injection, maximum risk, injury, major nerves
• Lead-in keywords: maximum risk

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QVcGRGMNZ-GRKw6sCr2BDX

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