Final answer:
The best vein to use for a venipuncture in the antecubital region is the median cubital vein.
Step-by-step explanation:
The best vein to use for a venipuncture in the antecubital region is the median cubital vein.
The median cubital vein is a superficial vessel that links the cephalic vein to the basilic vein in the form of a 'v'. It is the most common site for drawing venous blood in humans.
When performing a venipuncture, the healthcare professional will look for the median cubital vein since it is usually well-positioned and has good blood flow.