American Society for Clinical Pathology (ASCP) Histotechnician Certification Practice Exam

What is the most common site for venipuncture?

1. External jugular vein

2. Median cubital vein

3. Cephalic vein

4. Basilic vein

The correct answer is: Median cubital vein

The median cubital vein is the most common site for venipuncture due to several key factors. First, this vein is located in a prominent position in the antecubital fossa, making it easily accessible. Its size is typically larger than other veins, which allows for the collection of blood samples with minimal discomfort for the patient. Furthermore, the median cubital vein generally has a consistent anatomical position, which aids in standardizing the venipuncture procedure and reducing the potential for complications. It is usually situated centrally between the cephalic vein (located laterally) and the basilic vein (located medially), providing a reliable choice for healthcare professionals. Understanding the anatomical landmarks and characteristics of the median cubital vein is crucial for those training in phlebotomy and histotechnology, as successful venipuncture can enhance laboratory specimen quality and ultimately impact patient care.