NHA Phlebotomy Certification Practice Exam

Which vein is located on the thumb side of the arm?

1. Brachial

2. Median cubital

3. Basilic

4. Cephalic

The correct answer is: Cephalic

The cephalic vein is located on the thumb side of the arm, making it the correct choice for this question. This vein is positioned laterally in the forearm and is often more visible than other veins, which can be beneficial for phlebotomy procedures. Understanding the anatomy of the arm is crucial for phlebotomists as it helps in locating veins for blood draws. The cephalic vein is particularly significant because it provides an easy access point for venipuncture, especially in individuals with difficult venous access. Its position also allows for minimal discomfort to the patient, as it is away from major arteries and nerves located more medially. The other veins mentioned play different roles: the brachial vein is found deeper in the arm, typically accompanying the brachial artery; the median cubital vein is located in the antecubital fossa, making it centrally positioned and usually preferred for draws; and the basilic vein runs medially and is often not as easily accessible due to its proximity to the brachial artery and nerves. Understanding the specific location and anatomy of the cephalic vein facilitates efficient and safe blood collection procedures.