Routine Blood Collections, question 8The lab rejects a hemolyzed light green-top (lithium heparin) tube. Which handling step at collection most likely caused the hemolysis?
Related terms
venipunctureEntering a vein with a needle to withdraw blood, usually at the antecubital area of the arm.
evacuated tube systemClosed system of a multisample safety needle, a tube holder and vacuum tubes. Needle and holder go into the…
fibrinProtein threads formed from fibrinogen during clotting that bind platelets and blood cells into a clot.
fibrinogenA clotting protein in plasma that is converted into fibrin; plasma contains it, serum does not.
formed elementsThe solid part of blood: red cells, white cells and platelets (cell fragments), suspended in the liquid…
glycolytic inhibitorAdditive, most often sodium fluoride in gray-top tubes, that keeps cells from consuming glucose after…
heel stickCapillary puncture on the medial or lateral plantar surface of an infant's heel, used from birth to about 6…
hematomaSwelling from blood leaking into tissue at the puncture, for example when the needle goes through the vein…
hemoconcentrationRise in cell and protein concentration when plasma water leaves the vein, as with a tourniquet left on too…