Blood Groups and Significance · NCERT Biology

How can erythroblastosis foetalis be prevented in a susceptible pregnancy?

  1. By administering Rh antigens to the mother before the next pregnancy
  2. By giving anti-Rh antibodies to the Rh- mother soon after the first delivery
  3. By performing a complete blood transfusion for the Rh- mother after delivery
  4. By providing supplemental vitamins and iron to the developing foetus
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Correct answer: By giving anti-Rh antibodies to the Rh- mother soon after the first delivery

The condition can be avoided by administering anti-Rh antibodies (RhoGAM) to the Rh- mother immediately after her first Rh+ child's birth. This prevents her immune system from becoming sensitized to the Rh antigen.

Difficulty: Medium Question 9 of 20

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