Erythroblastosis fetalis can be prevented if the mother is injected at parturition, with an antibody called_____________?

Correct answer: B. Rh (D) immunoglobulin

A. Blocking antibody
B. Rh (D) immunoglobulin
C. Antilymphocyte globulin
D. Antithymocyte serum

Explanation

Anti-D Rh immunoglobulin given to an Rh-negative mother prevents sensitisation to Rh-positive fetal red cells and thereby reduces haemolytic disease in later pregnancies. It is commonly administered antenatally and after delivery when indicated.

Submitted by a TestUstad contributor and published by the TestUstad editorial teamLast updated 18 September 2026

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