Which antibody is directed against the P1 antigen?

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Multiple Choice

Which antibody is directed against the P1 antigen?

Antibody naming in transfusion medicine reflects the specific antigen it targets. The P1 antigen, part of the P1PK system on red cells, is recognized by an antibody called anti-P1. So the antibody directed against the P1 antigen is Anti-P1. The other antibodies target different antigens: anti-I binds I antigen, anti-Lewis binds Lewis antigens Le(a) or Le(b), and anti-Sda binds the Sda antigen. Hence anti-P1 is the correct match for the P1 antigen.

Antibody naming in transfusion medicine reflects the specific antigen it targets. The P1 antigen, part of the P1PK system on red cells, is recognized by an antibody called anti-P1. So the antibody directed against the P1 antigen is Anti-P1. The other antibodies target different antigens: anti-I binds I antigen, anti-Lewis binds Lewis antigens Le(a) or Le(b), and anti-Sda binds the Sda antigen. Hence anti-P1 is the correct match for the P1 antigen.

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