sugar-water hemolysis test…

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what the risks are sucrose hemolysis test, blood test to detect increased fragility of red blood cells by swelling them in low-salt solution, 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 swell, blood, a needle is inserted, vein, blood is collected in an airtight 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, blood is analyzed, , no special preparation needed, infants, children, test depends on child's age, previous experience, 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 is ordered, suspected paroxysmal nocturnal hemoglobinuria, pnh, hemolytic anemia of unkown origin, pnh red blood cells, unusually susceptible to complement, a component, the body's defense mechanism, a low-salt solution containing sucrose, sugar, added to these cells, complement is activated, binds, cells, bursts them, negative, less than 5% hemolysis, red blood cell breakdown, positive, greater than 10% hemolysis, autoimmune hemolytic anemias, leukemia, give false positive result, risks associated, having blood drawn, slight, 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, a negative test, does not rule out pnh, false-negative results, occur serum is depleted of complement.