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…
Processing, question 3While filing a reference lab's printed report, a phlebotomist at a hospital outpatient lab sees she keyed a hemoglobin of 8.1 g/dL into…
Related terms
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…
hemolysisRupture of red cells that releases hemoglobin and potassium into serum or plasma, tinting it pink to red and…
hemostasisThe body's process for stopping bleeding: the vessel narrows, platelets form a plug, then coagulation builds…
heparinAnticoagulant that blocks thrombin. Green-top tubes hold lithium or sodium heparin for plasma chemistry; it…
hypotensionLow blood pressure. It can make a patient dizzy or faint, so watch closely during and after the draw.