Home Glossary Letter P plasma
plasma
Medical term Routine Blood Collections
The liquid part of unclotted blood, separated by centrifuging a tube that contains an anticoagulant; it still contains fibrinogen and other clotting factors.
Free practice questions that use plasma
Related terms anticoagulant Prevents clotting: tube additives like EDTA, citrate and heparin, and blood thinners like warfarin, which… fibrinogen A clotting protein in plasma that is converted into fibrin; plasma contains it, serum does not. petechiae Tiny red pinpoint dots from bleeding under the skin. They may appear below a tourniquet and can point to a… phlebitis Inflammation of a vein, most often from a clot (thrombophlebitis); a phlebitic vein is avoided for… phlebotomy Drawing blood, by venipuncture or skin puncture, for laboratory testing, donation or treatment. plantar surface The sole of the foot. Infant heel punctures are made on its medial or lateral sides. platelet Thrombocyte: a small cell fragment that sticks at a vessel injury to form a plug and helps clotting. Low… potassium oxalate Anticoagulant often paired with sodium fluoride in gray-top glucose tubes. povidone-iodine Iodine antiseptic. Carried into a sample it may falsely raise potassium, phosphorus or uric acid, so alcohol… probing Moving the needle around blindly under the skin to find a missed vein; WHO advises avoiding it because it… Study Routine Blood Collections
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platelet