What is the difference between arteries and veins.
Arteries are muscular, and they pulse with the heart. They carry oxygen rich blood away from the heart. Veins are elastic, they carry deoxygentated blood back to the heart.
What is the additive in the light blue tube?
Sodium citrate, Na citrate
What is the proper way to cleanse the skin site prior to performing venipuncture?
Cleanse the site with 70% alcohol pads with friction using back and forth strokes.
What are the three preferred sites for venipunctures performed by a medical assistant?
Median cubital vein, cephalic vein, and basilic vein
When drawing blood cultures, the site must be cleaned thoroughly using what two cleaners?
1st alcohol, then Betadine allowing time to dry in between.
Where should you draw if a patient has had a double mastectomy?
Ask the patient where to draw blood from, and confirm with the doctor. You may have to draw from a foot, or draw without a tourniquet.
Describe how and why a properly tied tourniquet aids in venipuncture.
Make veins larger and easier to feel by restricting venous flow but allowing arterial flow.
What is the additive in the lavendar top tube?
EDTA
This heart chamber receives blood returning from the lungs.
Left atrium
What anticoagulant is contained in a PST tube?
Sodium Heparin or Lithium Heparin
What method of venipuncture should be used for Newborns to infants 12 months of age?
Heel stick (Capillary blood specimen)
What should the phlebotomist do with the blood tubes after a successful blood draw?
Label specimen tubes at the bedside with the time, date, initials, and send to the lab with the requisition.