Bristol GP Service
Blood Group Screening and Tests
Beard Medical Practice offer a private blood group testing service. You can book a private GP consultation via our online booking page, whereby we will take a blood test and our laboratory will analyse your sample. We will then send you a certificate to confirm your specific blood group.
Why is it important to know your blood group? Blood group is determined by the ABO system. This ensures that in the event of requiring medical treatment, the right blood products are given to you. The ABO system is made up of four main types and your blood group is determined by the presence of certain antigens (a substance which induces an immune response). These are inherited from your parents and a child can have a different blood type to both parents. The ABO blood system is further complicated by the groups being positive or negative, due to the presence of Rhesus antigens. This is particularly important for couples planning a pregnancy and pregnant women.
Blood Group Types Human blood contains four major types determined by the presence or absence of two antigens (A and B).
Blood group A – has the A antigen on red cells (and B antibody in the plasma)
Blood group B – has the B antigen on red cells (and A antibody in the plasma)
Blood group AB – has both A and B antigens on red cells (but neither A nor B antibody in the plasma)
Blood group O – neither A nor B antigens on red cells (but both A and B antibody are in the plasma)