BLOOD ANALYSIS. Research of red cell antibody. Cartridge of red cell antibodies research : human antiglobulin test AHG. This test, also named Coombs test, enables to research the presence of red cell antibodies RAI. Red cell antibodies or hemolysins are antibodies present in certains individuals, directed against antigens of foreign red corpuscles , they have developped following a transfusion or a pregnancy with foeto_maternal incompatibility. Their presence must be determined before a transfus