What do the results mean?If you are getting a blood transfusion: The RBC screen will show whether your blood is compatible with the donor's blood. If it is not compatible, another donor will need to be found.If you are pregnant: The RBC screen will show whether your blood has any antigens that could harm your baby, including whether or not you have Rh incompatibility.If you have Rh incompatibility, your body may begin to make antibodies against your baby's blood.These antibodies are not a risk in your first pregnancy, because the baby is usually born before any antibodies are made. But these antibodies could harm your unborn baby in future pregnancies.Rh incompatibility can be treated with an injection that prevents your body from making antibodies against your baby's red blood cells.If you are Rh positive, there is no risk of Rh incompatibility.If you have questions about your results, talk to your health care provider.Learn more about laboratory tests, reference ranges, and understanding results.
