I.M. injection sites
When selecting the best site for a child’s I.M. injection, consider his age, weight, and muscle development; the amount of subcutaneous fat over the injection site; the type of drug you’re administering; and the drug’s absorption rate. These guidelines may assist you in making a selection.
Vastus lateralis
Appropriate age
Infants
Toddlers
Needle size and length
Infants under 4 months: 23G to 25G, 5/8″ needle
Infants over 4 months and toddlers: 22G to 25G, 1″ needle
Recommended maximum amount
Give 1 ml or less to infants.
Give 2 ml or less to toddlers.
Ventrogluteal
Appropriate age