By: Camry Fye
The surgical opening or puncture of a vein in order to withdraw blood or introduce a fluid, or (historically) as part of the procedure of letting blood.
people trained to draw blood from a patient (mostly from veins) for clinical or medical testing, transfusions, donations, or research. Phlebotomists collect blood primarily by performing venipuncture (or, for collections of minute quantities of blood, finger sticks).