[A rapid polycationic method for typing erythrocyte antibodies in liquid blood and stains].

The new rapid polycationic method for typing erythrocytic antibodies in liquid blood and its smears permits a rapid (within 4-5 min) detection of antibodies of virtually all erythrocytic isoserological systems ABO, MNSs, Rh, P, Lewis, Duffy, and Kidd in liquid blood and the group isohemagglutinins and incomplete Rh antibodies in blood smears. The test is performed on plane surface at ambient temperature and requires no special equipment. The sensitivity of the proposed method is much superior to that of the most sensitive and routine tests: enzymatic, antiglobulin, and salt. The only exclusion were anti-K antibodies, the majority of which were not detected by modern polycationic (tube and plane) methods.