A woman's first pregnancy is normal but her second pregnancy results in hemolytic disease of the newborn (HDN), or erythroblastosis fetalis.The second child needed a transfusion to completely replace the agglutinating blood.The mother is most likely type and both children are most likely .

Question

Quizplus · Accepted Answer

The mother is likely Rh-negative and the first child was Rh-positive, leading to sensitization. The second child, also Rh-positive, suffered from HDN due to the mother's antibodies attacking the Rh-positive blood cells.

A Woman's First Pregnancy Is Normal but Her Second Pregnancy