anticoagulant

Medical term Routine Blood Collections

Prevents clotting: tube additives like EDTA, citrate and heparin, and blood thinners like warfarin, which make puncture sites bleed longer.

Sources

Free practice questions that use anticoagulant

Routine Blood Collections, question 5A physician office patient has orders for an aPTT (light blue-top) and a hemoglobin A1c (lavender-top). The phlebotomist uses a straight…

EDTAEthylenediaminetetraacetic acid: binds calcium to keep blood unclotted; the lavender-top additive for…
heparinAnticoagulant that blocks thrombin. Green-top tubes hold lithium or sodium heparin for plasma chemistry; it…
anchoringHolding the skin taut with the thumb below the site, pulling toward the hand, so the vein stays still as the…
anemiaToo few red cells or too little hemoglobin, lowering oxygen delivery. Repeated blood draws can contribute…
antecubital fossaThe hollow at the front of the elbow where the median cubital, cephalic and basilic veins lie; the main…
antibodyA protein the immune system makes against a specific antigen. Antibodies against foreign red-cell antigens…
antigenA marker the immune system recognizes. Red-cell antigens such as A, B and the Rh factor decide a person's…
antisepticA germ-killing agent for skin and living tissue, such as 70% isopropyl alcohol for routine venipuncture…
arteryA vessel carrying blood away from the heart under high pressure. It pulses when palpated, which helps the…
atriumAn upper heart chamber. The right one collects blood coming back from the body; the left one collects…