RT Journal A1 ABRAHAMOV A, DIAMOND LK T1 REduction of oxygen-carrying capacity of rh-postive erythrocytes coated with anti-d antibodies JF A.M.A. Journal of Diseases of Children JO A.M.A. Journal of Diseases of Children YR 1959 FD April 1 VO 97 IS 4 SP 380 OP 383 DO 10.1001/archpedi.1959.02070010382002 UL http://dx.doi.org/10.1001/archpedi.1959.02070010382002 AB The anti-Rh antibody first found in human serum was an agglutinin active, like other agglutinins, against erythrocytes suspended in saline, but, unlike most other blood group antibodies, more active at 37 C, than at lower temperatures. It can be absorbed by red cells and eluted from them, and apart from the complicated specificities involved, does not differ particularly from other antibodies.1In addition to the saline agglutinin, there is a type of antibody incapable of agglutinating erythrocytes suspended in saline, but combining with cells containing the proper receptor, and thus rendering them insusceptible to agglutination by the ordinary saline agglutinins. These antibodies were therefore first referred to as "blocking" or "coating" antibodies. The presence of anti-Rh antibodies on the red cells somehow causes them to be removed from the circulation and destroyed earlier than normally.2 The red cells appear normal in the test tube, and even on microscopic