When will RH negative mothers receive RhoGam if the baby is RH positive?

• A. At birth
• B. Within 72 hours
• C. Within 2 weeks postpartum
• D. After the first postpartum checkup

Answer: (B)

RhoGam, which is Rh immunoglobulin, is administered to Rh-negative mothers who have given birth to an Rh-positive baby to prevent the development of Rh antibodies in the mother's blood. This is crucial because if an Rh-negative woman becomes sensitized to Rh-positive blood, it can lead to serious complications in future pregnancies.

The correct timing for the administration of RhoGam is within 72 hours of delivery. This timeframe is critical because it allows enough opportunity to neutralize any Rh-positive cells that may have entered the mother's bloodstream during childbirth, thus preventing her immune system from developing antibodies against Rh-positive blood cells. If the RhoGam is administered within this window, it effectively prevents sensitization and protects future pregnancies.

Administering RhoGam at birth, within two weeks postpartum, or after the first postpartum checkup exceeds the recommended timing and could allow for sensitization to occur, which is not ideal for the mother's future pregnancies. Therefore, prompt administration within 72 hours is essential for optimal prevention of Rh sensitization.