Final answer:
IM injections in older children and adults are usually given in the deltoid muscle of the upper arm or the vastus lateralis muscle in the thigh.
Step-by-step explanation:
In older children and adults, intramuscular (IM) injections are typically given in the deltoid muscle of the upper arm or the vastus lateralis muscle in the thigh.
The deltoid muscle is often used for smaller volumes of medication, while the vastus lateralis muscle is used for larger volumes.
It is important to note that the specific site for injection may vary depending on individual factors and the medication being administered, so it is best to consult a healthcare professional for guidance.
Learn more about location of IM injections