What is the medical term for a "blood draw"?

The medical term that specifically refers to the procedure of obtaining a blood sample from a vein is phlebotomy. While venipuncture is also a commonly used term for this process, phlebotomy encompasses the broader practice of drawing blood and managing specimens. Both terms are often used interchangeably in clinical settings, but phlebotomy is the more widely recognized designation for the specialty that includes various methods of blood collection.

The other terms presented do not accurately describe a blood draw. Arteriotomy refers to an incision made into an artery, which is a different procedure that may be used for various surgical interventions, and hemolysis pertains to the breakdown of red blood cells. Understanding these distinctions is crucial for proper medical terminology and practice.