Home Glossary Letter A additive
additive
Medical term Routine Blood Collections
Anything put in a collection tube on purpose, such as an anticoagulant, clot activator, separator gel or preservative, to suit the specimen to its test.
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Related terms anticoagulant Prevents clotting: tube additives like EDTA, citrate and heparin, and blood thinners like warfarin, which… clot activator Additive that makes blood clot faster so serum can be obtained; carried over into a citrate tube, it can… ABO blood group System that types blood as A, B, AB or O, depending on which A and B antigens are on the red cells. acid citrate dextrose ACD: additive in pale yellow-top tubes; WHO lists HLA tissue typing, paternity testing and DNA studies. anchoring Holding the skin taut with the thumb below the site, pulling toward the hand, so the vein stays still as the… anemia Too few red cells or too little hemoglobin, lowering oxygen delivery. Repeated blood draws can contribute… antecubital fossa The hollow at the front of the elbow where the median cubital, cephalic and basilic veins lie; the main… antibody A protein the immune system makes against a specific antigen. Antibodies against foreign red-cell antigens… antigen A marker the immune system recognizes. Red-cell antigens such as A, B and the Rh factor decide a person's… antiseptic A germ-killing agent for skin and living tissue, such as 70% isopropyl alcohol for routine venipuncture… Study Routine Blood Collections
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adulterated specimen