Download Blood Collection: Terms and Definitions and more Quizzes Biology of microorganisms in PDF only on Docsity!
acid citrate dextrose (ACD)
an additive commonly used in specimens collected for blood donations to prevent clotting. It ensures that the RBCs maintain their oxygen-carrying capacity. TERM 2
antiglycolytic agent
DEFINITION 2 an additive used in blood collection tubes that prevent prevents glycolysis. TERM 3
blood drawing chair
DEFINITION 3 chair or recliner specifically designed to hold a patient comfortably and safely in a proper position during and after a blood collection procedure. The design typically includes a moveable armrest on both sides of the chair. TERM 4
butterfly needle
DEFINITION 4 also referred to as a blood collection set or winged infusion set, it is the most commonly used intravenous device. It is a stainless steel beveled needle and tube with attached plastic wings on one end and a Luer fitting attached to the other. Most butterfly needles come with safety sheaths for needlestick protection after use. TERM 5
capillary tubes
DEFINITION 5 disposable narrow-bore pipettes that are used for pediatric blood collections and/or microhematocrit measures. The tubes may be coated with anticoagulant such as hepparin, and for safety reasons are usually made of plastic.
citrates
type of anticoagulant additive for blood collection tubes; prevents the blood clotting sequence by removing calcium and forming calcium salts. TERM 7
disposable sterile lancet
DEFINITION 7 sterile sharp device; preferably retractable, used in skin puncture collections to penetrate the skin at specified depths (e.g., no more than 2.0 mm for infant heelsticks). TERM 8
ethylenediamine tetra- acetic acid (EDTA)
DEFINITION 8 anticoagulant additive used to prevent the blood-clotting sequence by removing calcium and forming calcium salts. EDTA prevents platelet aggregation and is useful for platelet counts and platelet function tests. Fresh EDTA samples are also useful for making blood films or microscopic slides, because there is minimal distrotion of platelets and WBCs. TERM 9
gauge
number
DEFINITION 9 refers to the size (diameter) of the internal bore (opening) of a needle. The larger the number, the smaller the bore size, and vice versa. TERM 10
glycolysis
DEFINITION 10 the breakdown or metabolism od glucose by blood cells.
oxalates
anticoagulantsthat prevent blood-clotting sequence by removing calcium and forming calcium salts. TERM 17
sodium fluoride
DEFINITION 17 an additive (antiglycolytic agent) present in specific blood collection tubes that is used for glycolytic inhibition tests. TERM 18
specific gravity
DEFINITION 18 weight compared to water. TERM 19
sterile gauze
pads
DEFINITION 19 typically used in blood collection procedures either during the decontamination process and/or after blood collection to aid in stopping the bleeding; it is a sterile cotton mesh pad that is packaged in individual units. TERM 20
vacuum (evacuated) tube
DEFINITION 20 color-coded specimen collection tube that contains a vacuum so as to aspirate blood when a needle enters a patients vein. The tubes are part of a blood collection method that also requires a double- pointed needle and a special plastic holder (adapter). One end of the double-pointed needleenters the vein, the other pierces the top of the tube, and the vacuum aspirates the blood into the tube. Tubes may contain anticoagulants.
winged infusion
set
also called a butterfly set or scalp needle set, the systemcan be used for difficult venipunctures due to small or fragile veins. The needle is typically smaller, and it has a thin tubing with a Luer adapter at the end so that it can be used on a syringe or an evacuated tube system during venipuncture.
