Passive immunization of an Rh-negative woman with anti-Rh factor antibodies within a few hours of giving birth to an Rh-positive baby is helpful in preventing erythroblastosis fetalis in a subsequent pregnancy.

Question

Quizplus · Accepted Answer

Passive immunization with anti-Rh factor antibodies is a preventive measure to protect against erythroblastosis fetalis. The antibodies bind to fetal Rh-positive red blood cells in the Rh-negative mother's bloodstream, preventing her immune system from recognizing and attacking them, thus reducing the risk of sensitization and subsequent hemolytic disease of the newborn in a subsequent pregnancy. It should be given within 72 hours after delivery.

Passive Immunization of an Rh-Negative Woman with Anti-Rh Factor Antibodies