The blood of persons of blood group O contains antibodies against antigens A and B. The red blood cells of persons of blood group A have A antigen on their surface. If someone with blood group A receives blood from a donor of group O, then anti-A antibodies in the donor blood should attack the A antigens on the recipient's red cells. Shouldn’t this be a problem?
Question
The blood of persons of blood group O contains antibodies against antigens A and B. The red blood cells of persons of blood group A have A antigen on their surface. If someone with blood group A receives blood from a donor of group O, then anti-A antibodies in the donor blood should attack the A antigens on the recipient's red cells. Shouldn’t this be a problem?
Solution
Yes, this could potentially be a problem. When someone with blood group A receives blood from a donor of blood group O, the recipient's immune system recognizes the A antigens on the donor's red blood cells as foreign. As a result, the recipient's immune system produces anti-A antibodies to attack and destroy the A antigens on the donor's red blood cells. This immune response can lead to a transfusion reaction, which can cause symptoms such as fever, chills, shortness of breath, and in severe cases, organ damage or even death. Therefore, it is important to carefully match blood types and perform compatibility testing before transfusions to avoid such complications.
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