Certified Clinical Medical Assistant Exam Practice Question

Correct Answer: C

Rationale: The median vein is the most commonly used for venipuncture due to its central location and accessibility, making it easier to locate and puncture. It typically has a larger diameter, allowing for better blood flow and reducing the risk of complications.

The brachial vein, while significant, is deeper and less accessible, making it a less favorable choice. The basilic vein, although visible, is often close to major nerves and arteries, increasing the risk of complications. The dorsal veins, located on the back of the hand, are smaller and less stable, which can complicate blood draws. Thus, the median vein is preferred for its safety and ease of access.