An incision into a vein with a needle to withdraw blood for analysis is known as:

A) intravenous.
B) phlebotomy.
C) phlebitis.
D) pericarditis.

Phlebotomy

The act or practice of drawing blood from a vein, typically for diagnostic purposes.

Intravenous

Relating to the administration of drugs or fluids directly into a vein.

Phlebitis

Inflammation of a vein, often in the legs, which can cause pain, swelling, redness, and warmth.