High-Risk Pregnancy - Rh Disease Rh Disease What is Rh disease? Rh disease occurs during pregnancy when there is an incompatibility between the blood types of the mother and baby.
Rh Disease in Pregnancy Rh antigen is found on red blood cells and forms early in fetal life. However, 15% of white Americans and 5% of black Americans do not have this antigen on their blood cells.
Rh disease - Medicow D (formerly Rh) blood typing and antibody screening is recommended for all pregnant women at their first prenatal visit. Repeat antibody screening at 24-28 weeks' gestation is recommended for unsensitized D-negative women (see Clinical Intervention).
Rh Disease of Newborns About eighty-five percent of the people in this country have a substance contained in the red cells of their blood. This is known as the Rhesus factor, or more commonly, the Rh factor.
What it means to be Rh-negative During your first prenatal exam, which is typically the longest, most comprehensive visit you'll have with your obstetrician or midwife, you'll be given a routine blood test. The test is used to determine your blood type (A, B, AB, or O) and your Rh status (positive or negative). Your blood is also screened for the presence of Rh antibodies.