Blood Typing and Crossmatching

Blood typing is the process of determining an individual's blood type, which is classified into categories like A, B, AB, and O, based on the presence of specific markers called antigens on red blood cells. Crossmatching is a test performed before blood transfusions to ensure compatibility between the donor's and recipient's blood, reducing the risk of an immune reaction. By checking for antibodies against the donor's red blood cells, healthcare providers ensure that the transfusion is safe and effective, which is crucial for patient safety during medical procedures.