Which of the following muscles should always be avoided for IM Injection to prevent sciatic nerve injury?

NORCET 3 - 2022 (Shift-1)

Nursing Foundation

Easy

Appeared in: NORCET 3 - 2022 (Shift-1)

Explanation

The dorsogluteal site is located in the upper outer quadrant of the buttock, in close proximity to the sciatic nerve.
Injecting into this site carries a high risk of causing significant injury to the sciatic nerve, which can lead to pain, temporary or permanent paralysis, and foot drop.
Due to these safety concerns, modern nursing practice and guidelines from organizations like the CDC no longer recommend the dorsogluteal site for IM injections.

Option A: The ventrogluteal muscle is considered the safest and most preferred site for IM injections in adults and children because it is deep and not near any major nerves or blood vessels.
Option B: The vastus lateralis muscle is a safe and commonly used site, especially for infants and toddlers, as it is large and well-developed.
Option C: The deltoid muscle is a safe site for small-volume injections (typically 1 mL or less), such as vaccines, in adults and older children.

Visual 1: Infographic - A comparative chart of the four IM injection sites (Ventrogluteal, Vastus Lateralis, Deltoid, Dorsogluteal). The infographic should highlight the key landmarks, recommended patient populations, maximum injection volumes, and clearly mark the Dorsogluteal site with a large 'X' or warning symbol indicating 'Do Not Use' due to sciatic nerve risk.
Visual 2: Diagram - A step-by-step illustration of how to locate the ventrogluteal site using the 'V' method (placing the palm on the greater trochanter, index finger on the anterior superior iliac spine, and middle finger along the iliac crest).

Clinical Relevance

Nursing practice connection: Knowing Safe administration of intramuscular (IM) injections and anatomical landmarks helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
A nurse's primary responsibility is patient safety ('do no harm'). Choosing a safe injection site is a critical nursing skill that prevents severe, long-term complications like nerve damage.
Using an outdated and unsafe site like the dorsogluteal can have legal and ethical implications for the nurse, as it deviates from the current standard of care.
What if? A patient who has received injections for years requests the dorsogluteal site because 'that's where they always get it.' The nurse has a duty to educate the patient about the risks and explain why a safer site, like the ventrogluteal, will be used instead. The nurse must document this education and the use of the safer site.

How to Approach the Question

First, identify the core safety issue in the question: preventing 'sciatic nerve injury'.
Next, recall the anatomical locations of the common IM injection sites provided in the options.
Mentally map these sites on the body and consider their proximity to major nerves and blood vessels.
The question asks which site to 'avoid'. This requires you to identify the site with the highest risk.
Eliminate the options that are known to be safe and recommended sites (Ventrogluteal, Vastus Lateralis, Deltoid).
Select the remaining option (Dorsogluteal) which is known for its proximity to the sciatic nerve, making it the correct answer to 'avoid'.

Concept Tested & Keywords

Concept Tested: Safe administration of intramuscular (IM) injections and anatomical landmarks.
Stem keywords: IM Injection, avoided, sciatic nerve injury, muscles
Lead-in keywords: Which of the following
Negative lead-in flag: false

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