It is the collection of blood from veins. It is most often performed for the purpose of laboratory testing. It is done with a needle, and typically performed by a phlebotomist. Venipuncture may also be performed in order to remove extra red blood cells from the blood, to treat various blood disorders.

Why is a venipuncture performed?

Venipuncture is a routine procedure that's typically performed for one of the following reasons: To acquire blood samples for diagnostic purposes. To monitor levels of various blood components. To administer therapeutic treatments intravenously, including medications, nutrition, or chemotherapy.

What is the purpose of blood draw?

A procedure in which a needle is used to take blood from a vein, usually for laboratory testing. A blood draw may also be done to remove extra red blood cells from the blood, to treat certain blood disorders. Also called phlebotomy and venipuncture.