NORCET 2 - 2021 (shif…: Which route is preferred for the second dose of DPT?

NORCET 2 - 2021 (shift-1)

Child Health Nursing (Pediatrics)

Easy

Appeared in: NORCET 2 - 2021 (shift-1)

Explanation

The second dose of DPT is typically administered at 10 weeks, making the recipient an infant.
The vastus lateralis muscle, located on the anterolateral aspect of the thigh, is the largest, most developed, and safest muscle for intramuscular (IM) injections in infants (birth to 12 months).
This site is chosen because it is far from major nerves (like the sciatic nerve) and blood vessels, minimizing the risk of injury during vaccination.
The provided image visually confirms the correct administration site on an infant's thigh, which is consistent with the vastus lateralis location.

Option B: The deltoid muscle is small and underdeveloped in infants, providing insufficient muscle mass for safe vaccine administration and absorption.
Option C: This site is contraindicated for infants due to the high risk of permanent injury to the sciatic nerve. The thick layer of subcutaneous fat can also lead to poor vaccine absorption and immune response.
Option D: This is not a standard or correct anatomical name for the muscle. It is a distractor intended to be confused with the correct term, 'vastus lateralis'.

Clinical Relevance

Nursing practice connection: Knowing Pediatric intramuscular injection sites for vaccination helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
Using the correct injection site is critical for patient safety, preventing complications like nerve damage, abscesses, or hematomas, and ensuring optimal vaccine efficacy.
Nurses must be proficient in landmarking injection sites based on the patient's age to adhere to best practices and provide safe, effective immunization.
What if? If the child were 5 years old and receiving a DPT booster, the deltoid muscle would be the preferred site, as it would be sufficiently developed by that age.

How to Approach the Question

First, identify the patient's age group from the question. 'Second dose of DPT' implies an infant, who is typically 10 weeks old.
Next, recall the recommended intramuscular (IM) injection sites for the infant age group.
Analyze the options provided. The vastus lateralis is the standard, recommended site for infants.
Eliminate the incorrect options based on established safety guidelines: the deltoid is for older children/adults, the gluteal site is unsafe due to sciatic nerve risk, and 'lateralis femoris' is an incorrect anatomical term.
Use the provided image of an injection in an infant's thigh to confirm your understanding of the correct anatomical location.

Concept Tested & Keywords

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E6 Nursing Fundamentals Potter Perry 12e Part 3 p. 175-177

E6 Parks TextBook of Preventive & Social Medicine part 1 — Subpart C (pp 404-604 of 604) p. 126-128