Chapter 7 Blood Collection Equipment

Question 1

ACD

Answer 1

acid citrate dextrose; additive that maintains red cell viability

Question 2

additive

Answer 2

substance, such as an anticoagulant, an antiglycolytic agent, a separator gel, a cell preservative, or a clot activator, added to a blood collection tube

Question 3

aerosol

Answer 3

fine mist of substances or particles suspended in a gas or the air

Question 4

aliquot

Answer 4

dividing or separating samples into separate containers

Question 5

antiglycolytic

Answer 5

glucose preservative found in some blood collection tubes

Question 6

antiseptic

Answer 6

germicidal solution used to clean the skin prior to venipuncture or dermal puncture

Question 7

bacteriostatic

Answer 7

substance that is capable of inhibiting the growth of bacteria

Question 8

bevel

Answer 8

point of the needle that has been cut on a slant for ease of entry

Question 9

capillary action

Answer 9

process in which blood automatically flows into a thin tube

Question 10

citrate

Answer 10

additive, usually sodium citrate, that prevents coagulation by binding calcium

Question 11

clot activator

Answer 11

an additive that speeds up the clotting of blood in a collection tube

Question 12

dermal

Answer 12

pertaining to the skin

Question 13

EDTA

Answer 13

additive that prevents coagulation by binding calcium

Question 14

evacuated collection tube

Answer 14

stoppered glass or plastic tube used for collecting blood; contains a premeasured vacuum

Question 15

evacuated tube holder

Answer 15

specialized plastic adaptor that holds both a needle and a tube for blood collection; adaptor and barrel are also common names

Question 16

gauge

Answer 16

unit of measure assigned to the diameter of the lumen (hole) of a needle

Question 17

heel warmer

Answer 17

chemically activated heating device

Question 18

heparin

Answer 18

additive that prevents coagulation by inactivating thrombin

Question 19

lancet

Answer 19

small cutting instrument that controls the depth of the cutting blade

Question 20

microcollection

Answer 20

process of obtaining blood using a dermal (skin) puncture procedure; also known as micro technique

Question 21

thixotropic separator gel

Answer 21

semisolid that forms a barrier between cells & plasma or serum upon centrifugation of blood specimens

Question 22

tourniquet

Answer 22

device that impedes or stops the flow of blood

Question 23

venipuncture

Answer 23

procedure in which a sharp object is introduced into a vein for the purpose of withdrawing blood or instilling medications

Question 24

winged infusion set

Answer 24

stainless steel collection needle connected to 5 to 12 inches of plastic tubing; also called a butterfly needle set