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chapter 17
terminology
Question | Answer |
---|---|
antecubital space | the surface of the arm in front of the elbow |
anticoagulant | a substance that inhibits blood clotting. |
buffy coat | a thin, light-colored layer of white blood cells and platelets that lies between a top payer of plasma and a bottom layer of red blood cells when a anticoagulant has been added to a blood specimen |
evacuated tube | a closed glass or plastic tube that contains a premeased vacuum |
hematoma | a swelling or mass of coagulated blood caused by a break in the blood vessel |
hemoconcentration | an increase in the concentration of the nonfilterable blood components in the blood vessels, such as red blod cells, enzymes, iron, and calcium, as a result of decrease in the fluid content of the blood |
hemolysis | the break down of blood cells |
osteochondritis | inflammation of bone and the cartiliage |
osteomyelitis | inflammation of the bone as a result of bacterial infection |
phlebotomist | a health care professional trained in the collection of blood |
phlebotomy | incicion of a vein for the removal of blood the collection of blood |
plasma | the liquid part of the blood consisting of a clear, straw-colored fluid that comprises approximatley 55%of the blood volume |
serum | plasma from which the clotting factor fibrinogen has been removed |
venipuncture | puncture of a vein |
venous reflux | the backflow of blood (from an evacuated tube) into the patients vein |
venous stasis | the temporary cessation or slowing of the venous blood flow |