Which of the following muscles is used for administration of DPT vaccine?

NORCET 3 - 2022 (Shift-1)

Child Health Nursing (Pediatrics)

Easy

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

Explanation

The vastus lateralis is the recommended and preferred intramuscular injection site for infants and toddlers (from birth to age 3).
As the DPT vaccine is a core component of the infant immunization schedule, this site is the standard choice.
This muscle is the largest and most developed in infants, ensuring the vaccine is deposited into deep muscle tissue for effective absorption.
The site is located away from major nerves (like the sciatic nerve) and blood vessels, making it the safest option for this age group.

Option A: While the ventrogluteal site is a safe IM site for all ages, the vastus lateralis is specifically recommended by the CDC and pediatric guidelines as the primary site for infant immunizations.
Option C: The deltoid muscle is too small and underdeveloped in infants and toddlers to safely accommodate an IM injection. Using it carries a risk of injury to the radial and axillary nerves.
Option D: The dorsogluteal site is no longer recommended for IM injections in any age group, especially infants and children. There is a significant risk of permanent sciatic nerve damage.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Intramuscular injection sites for pediatric vaccination as background academic context rather than a clinical decision trigger.
Correct site selection is a critical nursing responsibility that directly impacts vaccine efficacy and patient safety. Using the wrong site can lead to nerve damage, poor immune response, or local complications like abscesses.
Nurses must educate parents about expected local reactions (redness, swelling) at the injection site and signs of more serious adverse events.
What if? If an infant requires multiple simultaneous IM injections (e.g., DPT, Hib, PCV), the nurse should use different limbs or separate injection sites on the same vastus lateralis muscle by at least 1 inch (2.5 cm).

How to Approach the Question

First, identify the key components of the question: 'DPT vaccine' and 'muscle for administration'.
Recall the target population for the DPT vaccine, which is primarily infants and young children.
Consider the anatomical and physiological development of an infant. Which muscle is the largest, most accessible, and safest for an injection?
Evaluate each option based on standard pediatric immunization guidelines.
Eliminate the dorsogluteal site first, as it is no longer recommended due to sciatic nerve risk.
Compare the remaining sites: Deltoid (too small for infants), Ventrogluteal (safe, but not the primary choice for infant vaccines), and Vastus lateralis (large, safe, and the recommended site).

Concept Tested & Keywords

QBfO31ssD5vmuNb7geQJRd