Blood Group Incompatibility

**Definition:** An antigenic mismatch between donor and recipient blood. Antibodies present in the recipient's serum may be directed against antigens in the donor product. Such a mismatch may result in a transfusion reaction in which, for example, donor blood is hemolyzed. (From Saunders Dictionary & Encyclopedia of Laboratory Medicine and Technology, 1984).

**Tree numbers:** - G09.188.114 - G12.186

**Synonyms:** - Blood Type Incompatibility