Which is the preferred site for intramuscular injections in young children?

The vastus lateralis is the preferred site for intramuscular injections in young children due to several factors related to both safety and anatomical considerations. In infants and toddlers, the deltoid muscle is not fully developed, making it less suitable for intramuscular injections, as there is a higher risk of hitting underlying structures. The ventral gluteal site, while considered a safe option in older children and adults, presents some challenges in positioning and is less accessible in young children.

The dorsogluteal site, once commonly used, has fallen out of favor due to the risk of injuring the sciatic nerve and the increased likelihood of hitting blood vessels, especially in younger patients where anatomy can be less predictable. In contrast, the vastus lateralis muscle is more prominent and easily accessible in young children, which makes it an ideal site for injection. It also has a good blood supply, which facilitates the absorption of the medication.

Considering all these factors, the vastus lateralis provides a safe, effective, and reliable site for intramuscular injections in the pediatric population, making it the preferred choice for administering vaccines and other medications.