![]() Alternatively, your doctor can order a blood test. If you have previously donated blood, you have been typed and your Rh factor will be indicated by the (+) or (-) after your blood type. ![]() If you are not pregnant, you can find out your Rh factor by donating blood at Vitalant (pregnant women or those who have been pregnant in the last six weeks cannot donate blood). You have a couple of options for finding out your Rh factor. Usually, there isn’t time for enough antibodies to develop during your first pregnancy, but the Rh factor difference should still be addressed as early as possible so it doesn’t affect any future pregnancies. Your body will interpret the Rh protein as a foreign substance and may create antibodies to fight the “intruder.” While these antibodies can cause serious harm to your unborn child, your doctor can advise you on what needs to be done throughout your pregnancy to greatly reduce or eliminate the risk. If your blood is Rh-negative and there is a possibility your unborn baby will have Rh-positive blood, any mingling of your blood with your child’s blood can cause problems. ![]() Both blood type and Rh factor must be compatible in the blood you receive so you don’t have a reaction to the transfusion. People who are Rh-positive have a certain protein on their blood called the Rh factor, and Rh-negative folks do not have this protein.Īlong with blood type, Rh factor plays an important role if you receive a blood transfusion. When you donate blood, you will find out your blood type, which includes something called an Rh factor-the positive (+) or negative (-) after your A, B, O or AB blood type. ![]() During surgeries and transfusions, you need to receive compatible blood that’s why it's important to find out what your blood type and Rh factor are in case of an emergency.Īnd if you’re embarking on the journey into parenthood, it’s especially important for your unborn child’s health to know your Rh factor during pregnancy. ![]()
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