Question

Rh –ve person donated blood to Rh +ve person for the second time. Then,?

• A. Rh –ve person will die.
• B. Rh +ve person will die.
• C. Rh +ve blood starts reacting to Rh –ve blood.
• D. Nothing happens to Rh +ve person.

Answer 1

The correct option is

D

Nothing happens to Rh +ve person.

A Rh+ve person carries Rh antigen but no Rh antibodies. Rh antibodies are not present in the blood but are produced by an organism’s immune system during the mixing of Rh-positive and negative blood. An Rh-ve person does not carry Rh antigen or Rh antibodies and a blood transfusion from Rh-ve to Rh+ve won’t cause any immune reaction.