Rh Factor

Question 1

What is the most common antigen?

Answer 1

D

Question 2

Presence of antigen D

Answer 2

Rh positive

Question 3

What is the significance of Rh factor?

Answer 3

Blood transfusion
Erythroblastosis fetalis

Question 4

What is erythroblastosis fetalis ( hemolytic disease of the newborn )?

Answer 4

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

Question 5

What is the treatment of erythroblastosis fetalis?

Answer 5

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