A thin, light-colored layer of white blood cells and platelets that lays between a top layer of plasma and a bottom layer of red blood cells when an anticoagulant has been added to a blood specimen.
Buffy coat
A closed glass or plastic tube that contains premeasured vacuum.
Evacuated tube
A swelling or mass of coagulated blood caused by a break in a blood vessel.
Hematoma
An increase in the concentration of the nonfilterable blood components.
Hemoconcentration
The breakdown of blood cells.
Hemolysis
Inflammation of bone and cartilage.
Osteochondritis
Inflammation of the bone due to bacterial infection.
Osteomyelitis
A health professional trained in the collection of blood specimens.
Phlebotomist
Incision of a vein for the removal or withdrawl of blood.
Phlebotomy
The liquid part of blood, consisting of a clear, yellowish fluid that makes up approximately 55% of the total blood volume.
Plasma
Plasma from which the clotting factor fibrinogen has been removed.
Serum
Puncturing of a vein.
Venipuncture
The backflow of blood (fromand evacuated tube) into the patient's arm.
Venous reflux
The temporary cessation or slowing of the venous flow of blood.