Home Glossary Letter A antibody
antibody
Medical term Routine Blood Collections
A protein the immune system makes against a specific antigen. Antibodies against foreign red-cell antigens are why blood must be typed before transfusion.
Related terms antigen A marker the immune system recognizes. Red-cell antigens such as A, B and the Rh factor decide a person's… additive Anything put in a collection tube on purpose, such as an anticoagulant, clot activator, separator gel or… 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… anticoagulant Prevents clotting: tube additives like EDTA, citrate and heparin, and blood thinners like warfarin, which… antiseptic A germ-killing agent for skin and living tissue, such as 70% isopropyl alcohol for routine venipuncture… artery A vessel carrying blood away from the heart under high pressure. It pulses when palpated, which helps the… atrium An upper heart chamber. The right one collects blood coming back from the body; the left one collects… Study Routine Blood Collections
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anticoagulant