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Rh factor positive means1/17/2024 ![]() This neutralises your baby's rhesus positive blood cells in your blood stream before your immune system produces antibodies. It can be prevented by treating you with anti-D immunoglobin. This can lead to severe anaemia or death. Rhesus factor disease is when your immune cells attack your baby's rhesus positive cells. You may have a Rhesus negative blood type while your unborn baby has a Rhesus positive blood type. If you have a different blood type to your baby, you may need treatment while pregnant. ![]() It is also possible for a pregnant person and their baby to have incompatible blood types. However, it is extremely rare for this to happen. Receiving the wrong blood type in a transfusion can be life threatening and you would need treatment quickly. This is because O- blood has no antigens, and can be safely given to anyone. If you need a blood transfusion, in an emergency and there is no time to match your blood type, you will be given O- blood. This means that when your immune system recognises the donor blood cells, it could attack them. If you need a blood transfusion, you will have your blood tested for blood group and antibodies to make sure the donor blood you receive is compatible with your blood.īlood from a different blood type has different antigens on the blood cells.
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