title: Survival of Kn(a+) McC(a+) red cells in a patient with anti- "Kna/McCa".
abstract: The in vivo survival of Kn(a+)McC(a+) red cells in a patient with anti- "Kna/McCa" was studied using 51Cr-labeled incompatible cells. The antibody was IgG4, demonstrable at 37 degrees C in the antiglobulin test, and did not bind complement. Survival of tagged cells was 82.2 percent after 24 hours. The patient was transfused with a total of 29 units of incompatible blood with no evidence of ill effects. The direct antiglobulin test became positive after transfusion and remained positive for 2 1/2 months of observation. The findings suggest that individuals with anti- "Kna/McCa" may be transfused with Kn(a+)McC(a+) red cells.
mesh_terms: D001789:Blood Group Antigens / Q000276:immunology*; D001787:Blood Group Incompatibility / Q000097:blood* / Q000175:diagnosis / Q000276:immunology; D001803:Blood Transfusion; D003298:Coombs Test; D004905:Erythrocyte Aging; D005260:Female; D006801:Humans; D007518:Isoantibodies / Q000096:biosynthesis*; D008875:Middle Aged
chemical_list: D001789:Blood Group Antigens; D007518:Isoantibodies