Which veins are most commonly used for venipuncture?

The median cubital vein, cephalic vein, and basilic vein are the primary veins utilized for venipuncture due to their accessibility and size. The median cubital vein, located in the antecubital fossa (the bend of the elbow), is typically the first choice for blood collection because it is relatively large, superficially located, and usually does not have accompanying major arteries or nerves, which minimizes the risk of complications during the procedure.

The cephalic vein, located on the lateral side of the forearm, is also a suitable option, especially in patients whose median cubital vein may be difficult to access. While it can be more challenging to enter due to its location, it is prominent in many individuals. The basilic vein, found more medially and deeper beneath other structures, is a less preferred choice due to its proximity to nerves and arteries, but it is still viable for blood draws when other veins are not accessible.

Other options listed, such as the radial, ulnar, and jugular veins, are less commonly used for routine venipuncture. The radial and ulnar veins are small and primarily utilized for certain specific procedures or in emergency situations, while the jugular veins are typically reserved