sucrose hemolysis test
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a disaccharide obtained from sugar cane, sugar beet, or other sources; used as a food and sweetening agent.
sucrose hemolysis test a test for paroxysmal nocturnal hemoglobinuria; the patient's whole blood is mixed with isotonic sucrose solution, which promotes binding of complement to red blood cells, then incubated and examined for hemolysis; greater than 10 per cent hemolysis indicates paroxysmal nocturnal hemoglobinuria.
su·crose he·mol·y·sis test
isotonic sucrose promotes binding of complement to red blood cells; in paroxysmal nocturnal hemoglobinuria a proportion of the cells is sensitive to complement-mediated lysis, and hemolysis ensues.