The nurse is preparing to give an IM injection. Which of the following sites has maximum chance to damage of… - AIIMS CRE SNO - 2023

AIIMS CRE SNO - 2023

Applied Anatomy

Easy

Appeared in: AIIMS CRE SNO - 2023

Explanation

The dorsogluteal site is located near the large sciatic nerve.
Improper landmarking and needle placement can easily cause direct trauma to the sciatic nerve.
Injury to the sciatic nerve is a severe complication that can result in chronic pain, foot drop, and temporary or permanent paralysis of the lower limb.
Due to this high and unacceptable risk, modern nursing practice and guidelines from organizations like the WHO and CDC strongly advise against using the dorsogluteal site.

Option A: The deltoid muscle has a lower risk of major nerve injury compared to the dorsogluteal site. While the radial nerve is in the vicinity, careful landmarking makes injury unlikely.
Option C: The ventrogluteal site is considered the safest site for IM injections because it is located away from any major nerves or blood vessels.
Option D: The vastus lateralis site has a very low risk of nerve injury. The muscle is large and located on the anterolateral thigh, away from major nerves.

Visual 1: Diagram: Comparison of the four main IM injection sites (Deltoid, Dorsogluteal, Ventrogluteal, Vastus Lateralis) on a human figure, clearly showing the underlying musculature and the proximity of major nerves like the sciatic and radial nerves.
Visual 2: Infographic: A 'Do's and Don'ts' chart for IM injections, visually contrasting the 'Don't' (Dorsogluteal site with a warning symbol over the sciatic nerve) with the 'Do' (Ventrogluteal and Vastus Lateralis sites with checkmarks).

Clinical Relevance

Nursing practice connection: Knowing Anatomical landmarks and associated risks for intramuscular (IM) injections 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 prevent iatrogenic (inadvertently caused by medical treatment) injuries, which can have severe consequences for the patient and legal implications for the nurse and facility.
The evidence-based shift away from the dorsogluteal site to the ventrogluteal site represents a major advance in patient safety for medication administration.
What if the patient is an infant under 12 months? The vastus lateralis muscle would be the primary choice, as the gluteal muscles are not yet well-developed from walking, making the vastus lateralis the largest and safest muscle for injection.

How to Approach the Question

First, identify the core of the question, which is about the relative risk of nerve damage among different IM injection sites.
Recall the basic anatomy associated with each of the four sites listed: Deltoid (upper arm), Dorsogluteal (buttocks), Ventrogluteal (hip), and Vastus Lateralis (thigh).
Access your knowledge about major nerves located near these muscles. The most significant and commonly known risk is the sciatic nerve's proximity to the dorsogluteal site.
Compare the risks. While the deltoid has the radial nerve, the sciatic nerve is much larger and injury is more devastating. The ventrogluteal and vastus lateralis are known to be very safe.
Conclude that the dorsogluteal site presents the 'maximum chance' of major nerve damage as asked in the question.

Concept Tested & Keywords

Concept Tested: Anatomical landmarks and associated risks for intramuscular (IM) injections.
Stem keywords: IM injection, sites, maximum chance, damage, major nerves
Lead-in keywords: Which of the following
Negative lead-in flag: false

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