The cross-match is a direct compatibility test. It consists in the incubation of RBC from the blood unit with the plasma from the receiver. If the receiver has antibodies against antigens present on the RBC, there will be agglutination, direct or via antiglobulin reaction.

AGH MAESTRIA C3D 76118 Technical insert
AGH MAESTRIA IGG 76218 Technical insert
AGH MAESTRIA IGG + C3D 76318 Technical insert