What is the recommended treatment for a first-time mother with a spontaneous abortion who is Rh negative?

• A. RhoGAM IM
• B. IV fluids
• C. Calcium supplements
• D. Clindamycin

Answer: (A)

In the case of a first-time mother who is Rh negative and has experienced a spontaneous abortion, the recommended treatment is to administer RhoGAM, which is an immunoglobulin that helps prevent Rh sensitization. When an Rh-negative mother has a miscarriage, especially if the fetus is Rh-positive, there is a risk that the mother's immune system may produce antibodies against the Rh factor after exposure to Rh-positive blood cells from the fetus. This sensitization can pose serious risks in future pregnancies, as it can lead to hemolytic disease of the fetus and newborn (HDFN), where the mother's antibodies attack the red blood cells of an Rh-positive fetus.

Administering RhoGAM intramuscularly helps to prevent the formation of these antibodies by binding to any Rh-positive cells that may enter the maternal circulation during the miscarriage and facilitating their clearance. This intervention is critical in protecting future pregnancies from complications related to Rh incompatibility.

Other choices, such as IV fluids, calcium supplements, or antibiotics like clindamycin, do not address the central issue of preventing Rh sensitization and are not indicated in the management of a spontaneous abortion in an Rh-negative mother.