What is the most common antigen?
D
Presence of antigen D
Rh positive
What is the significance of Rh factor?
Blood transfusion
Erythroblastosis fetalis
What is erythroblastosis fetalis ( hemolytic disease of the newborn )?
When a Rh negative mother gives birth to Rh positive baby
mother will get anti D agglutions after delivery which as a result can cause troubles during the second pregnancy
What is the treatment of erythroblastosis fetalis?
Administration of anti D antibodies which neutralize the antigens and prevent the production of anti Rh agglutinins by the mother
Exchange blood transfusion → the infant’s blood is replaced by Rh -ve blood