partial thromboplastin time, ptt…

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what the risks are aptt, ptt, activated partial thromboplastin time, test that measures clotting time in plasma, liquid portion of blood, focuses on a specific pathway, in the blood clotting process, blood is drawn, a vein, on the inside, the elbow, the hand, puncture site is cleaned, antiseptic, an elastic band, around the upper arm to apply pressure, restrict blood flow, the vein, veins below the band to fill, blood, a needle is inserted, vein, blood is collected in an air-tight vial, a syringe, band is removed, restore circulation, once the blood has been collected, needle is removed, puncture site is covered to stop any bleeding, an infant, young child, area is cleansed, antiseptic, punctured, a sharp needle, a lancet, blood collected, pipette, small glass tube, on a slide, onto a test strip, into a small container, cotton, a bandage applied, puncture site, any continued bleeding, health care provider, advise to stop taking drugs, affect test results, "special considerations", infants, children, test depends on child's age, level of trust, prepare child, infant test, procedure preparation, birth to 1 year, toddler test, procedure preparation, 1 to 3 years, preschooler test, procedure preparation, 3 to 6 years, schoolage test, procedure preparation, 6 to 12 years, adolescent test, procedure preparation, 12 to 18 years, the needle is inserted to draw blood, feel moderate pain, others feel only a prick, stinging sensation, some throbbing, this test, evaluate a wide variety of disorders of blood coagulation, in the evaluation of disorders of both, excessive clotting, excessive bleeding, aptt, 25 to 35 seconds, normal value, vary between laboratories, patients receiving anticoagulant therapy, 1.5 to 2.5 times control values, prolonged ptt, cirrhosis, disseminated intravascular coagulation, dic, factor xii deficiency, hemophilia a, factor viii deficiency, hemophilia b, factor ix deficiency, hypofibrinogenemia, malabsorption, inadequate absorption of nutrients, intestinal tract, von willebrand's disease, lupus anticoagulant, test used, in the evaluation of a wide variety of disorders, excessive bleeding, fainting, feeling light-headed, hematoma, blood accumulating under the skin, infection, a slight risk, the skin is broken, multiple punctures to locate veins, performed on people who, have bleeding problems, risk of bleeding, hematoma, slightly greater than, bleeding problems, coagulation, blood clotting, a sequence of reactions involving several proteins known, coagulation factors, of these factors have other names, factor i, fibrinogen, factor ii is prothrombin, factor xii is hageman factor, liver produces these proteins, secretes them, blood, vitamin k is important to blood clotting, body converts it into prothrombin, take warfarin to keep blood from clotting, warfarin inhibits prothrombin, interrupting the clotting cascade, the link between vitamin k, prothrombin, people who take warfarin need to have consistent levels of vitamin k in diet, coagulation begins, the coagulation factors contact damaged tissue, each factor reaction triggers the next reaction, cascade, final product, the coagulation cascade, blood clot, factor x, activated by two separate sequences of chemical reactions, factors involved, in the two sequences, the intrinsic system, extrinsic system, intrinsic system involves activation of hageman factor by tissue not, in contact, blood, followed by sequential activation of factors xi, ix, x, presence of factor viii.