Forward and reverse typing discrepancy and crossmatch incompatibility of ABO blood groups: cause analysis and treatment

Abstract

Objective: Analyze the reasons for the mismatch between forward and reverse typing of ABO blood types and the mismatch between cross matching. Methods: When the forward and reverse typing do not match, use physiological saline method, polyamine method, anti human globulin method, and anti screening positive samples are used for antibody identification. Results: The factors contributing to discrepancies in blood typing between forward and reverse typing include weakened serum typing, condensation, monoclonal immunoglobulin influence, bone marrow transplantation, and blood type subtypes. The causes of cross matching incompatibility include homologous antibody, warm Autoantibody, cold Autoantibody and daretozumab. Conclusion: Regular red blood cell homologous antibody screening should be conducted based on disease type, blood transfusion history, and medication history. Antigen matched red blood cells should be selected for cross matching, and different experimental methods should be used for testing to ensure the safety of clinical blood transfusion.