Which blood type is required for a pregnant woman to receive RhoGAM after giving birth?

RhoGAM is an injection of Rh immunoglobulin given to Rh-negative mothers after they give birth to an Rh-positive baby. The purpose of administering RhoGAM is to prevent the mother from developing antibodies against Rh-positive blood cells, which could affect future pregnancies. For a woman to receive RhoGAM, she must be Rh-negative and Coombs negative.

Being Rh-negative indicates that the mother does not have the Rh factor protein on her red blood cells. A Coombs negative result indicates that she has not already developed antibodies against Rh-positive blood. If the mother were Rh-positive, she would not need RhoGAM as her body would not react against Rh-positive blood. Similarly, if she were Coombs positive, it would indicate that she has already formed antibodies, and RhoGAM would not be effective in preventing any potential complications in future pregnancies. Therefore, the correct context for administering RhoGAM is specifically when the mother is Rh-negative and Coombs negative.