Learn the technical aspects of patient blood draws.
What Does A Phlebotomist Do?
Phlebotomists, or phlebotomy technicians, usually take blood from patients by performing venipuncture. This involves puncturing the individual’s vein with a needle in order to draw the blood. The blood is usually drawn from the vein using an evacuated or vacuum tube system attached to the needle. To collect a minute quantity of blood, fingersticks may be used instead of venipuncture. A fingerstick is a small superficial wound ideal for providing just a few drops of blood. The phlebotomist will open the wound and wait for a droplet of blood to form. A capillary tube will then suck up the blood. Although blood is normally collected through a vein or superficial wound, specially trained phlebotomy technicians sometimes take samples from wrist arteries. Such specimens are used for arterial blood gas tests.
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