What is the recommended site for adult venipuncture?

The median cubital vein is generally considered the preferred site for adult venipuncture due to its accessibility and the fact that it is typically positioned centrally in the arm. This vein is located in the antecubital fossa, which is the area in front of the elbow, making it easy to locate and puncture. Additionally, the median cubital vein is usually larger than other veins and has a lower risk of complications, such as nerve damage or arteriovenous fistula formation, when engaged for blood collection.

While other veins can be utilized for venipuncture, they may not offer the same level of comfort, safety, and success rate as the median cubital vein. For example, the basilic vein, while also a viable option, is located closer to major nerves and arteries, making it more challenging to use and increasing the risk of complications. The saphenous vein is generally used for interventions in the leg and is not appropriate for routine venipuncture in adults. Similarly, the radial artery is located in the wrist and is primarily used for arterial blood sampling rather than venipuncture, which focuses on drawing blood from veins.