Which IV site is acceptable in a child but not typically in adults?

The scalp is an acceptable IV site primarily in children due to the anatomy and physiology of their veins. In infants and young children, the scalp has prominent veins that are easier to access and provide a safe location for intravenous access. This technique is particularly useful in pediatric patients because it minimizes movement and reduces the risk of dislodgment since children may have difficulty keeping other sites still.

In contrast, the use of the scalp for IV access is not typically practiced in adults because adult scalp veins are usually smaller and less prominent, making them more challenging to cannulate. Additionally, in adults, there are generally more suitable and accessible sites, such as the forearm or hand, with larger and more robust veins.

Overall, the choice of IV site should prioritize safety, accessibility, and the patient's comfort. The anatomical differences between children and adults dictate the use of specific areas for IV therapy, highlighting why the scalp serves as a viable option for children's IV therapies while being seldom used in adult cases.