A 7-year-old child, who must have a lumbar puncture, begins to cry and squirm when the nurse advises him that he must lie curled on his side with his back facing the primary health-care provider. Which of the following actions should the nurse perform at this time?

When preparing children for invasive procedures such as a lumbar puncture, it is essential for the nurse to use developmentally appropriate communication and strategies. The nurse’s priority is to ensure safety, cooperation, and emotional support while avoiding threats, shaming, or placing the burden solely on parents.

Rationale for correct answer:

C. A lumbar puncture requires absolute immobility to avoid injury and obtain an accurate sample. A 7-year-old may understand instructions but can still become fearful and unable to stay still on their own. The safest approach is for the nurse to request help so the child can be gently but firmly held in the correct position, ensuring safety and comfort.

Rationale for incorrect answers:

A. While immobility is critical, threatening the child with possible injury increases fear and does not provide supportive guidance.

B. Parents can offer comfort, but the nurse cannot rely solely on them to manage positioning during such a critical and invasive procedure.

D. Telling the child that children who are in elementary school are big enough to be still during procedures dismisses the child’s fear and is developmentally inappropriate. Guilt or shame is not an effective strategy for cooperation.

Take home points

• During invasive procedures like a lumbar puncture, safety and immobility are top priorities.
• The nurse should provide age-appropriate explanations, use comforting techniques, and ensure adequate assistance for positioning.
• Avoid threatening, shaming, or relying only on parents to maintain control — professional staff support is essential.
• A calm, supportive approach helps reduce fear while keeping the procedure safe.

Intramuscular (IM) injections are a method of delivering medication directly into a muscle, where it’s absorbed quickly into the bloodstream due to the muscle’s rich vascular supply.

Rationale for correct answers:
B. Studies show that vaccines given at the ventrogluteal site have fewer local reactions such as redness and swelling, and systemic side effects such as fever, making it a safe and effective site.
C. Having the child supine on a parent’s lap provides comfort, distraction, and physical control, reducing the risk of sudden movements that could cause injury.
D. In older children, the deltoid muscle may be associated with less pain and fewer side effects compared with vastus lateralis, though it is not typically used in infants due to limited muscle mass.

Rationale for incorrect answers:

A. For small infants, volumes should actually be lower such as 0.5–1 mL. Thus, this option is less universally correct in pediatrics compared to the chosen answers.

E. Aspiration is not recommended during vaccine administration. It causes unnecessary pain and is not needed since recommended injection sites for children do not have large blood vessels at risk.

Take home Points

• Ventrogluteal site is increasingly supported for vaccines due to fewer reactions and good muscle depth.
• Parent lap positioning is both comforting and a safety measure to prevent movement.
• Deltoid site is appropriate for older children/adolescents and may cause less discomfort than vastus lateralis in some cases.
• Injection volumes must always be adjusted to the child’s age and muscle size (infants ≤1 mL, older children up to 2 mL per site).