How can erythroblastosis fetalis be prevented?

• A. By administering antibiotics to the mother
• B. By giving a Rhogam shot to the Rh- mother after childbirth
• C. By ensuring the mother does not conceive an Rh+ child
• D. By monitoring the mother’s blood regularly

Answer: (B)

The prevention of erythroblastosis fetalis, a condition where an Rh-negative mother’s immune system produces antibodies against the Rh-positive blood cells of her fetus, can be effectively achieved by administering a Rhogam shot to the mother after childbirth. Rhogam is a medication that contains Rh immunoglobulin, which works by preventing the mother’s immune system from producing antibodies against Rh-positive blood cells.

When an Rh-negative mother gives birth to an Rh-positive baby, there is a risk that the mother’s immune system may come into contact with the Rh-positive blood during delivery. If this happens without the administration of Rhogam, the mother might develop antibodies that could cross the placenta in subsequent pregnancies and attack the red blood cells of another Rh-positive fetus. The timely injection of Rhogam after delivery helps to neutralize any Rh-positive cells that may have entered the mother’s circulation, thus preventing her immune system from mounting a response that could harm future pregnancies.

This method of prevention is crucial, particularly when it comes to safe pregnancies for Rh-negative mothers who may conceive Rh-positive children. Other options, such as using antibiotics or regular blood monitoring, do not address the underlying immunological response that leads to erythroblastosis fetalis, and there is