Emergence of red blood cell alloantibodies and transfusion management in patients with warm autoantibodies at a tertiary care centre in British Columbia, Canada.

BACKGROUND AND OBJECTIVES: The presence of warm autoantibodies (WAAs) complicates pre-transfusion and compatibility testing. Despite attempts to provide antigen-matched red blood cells (RBCs), the risk of alloimmunization remains. Rates of alloimmuni…

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