NEETZoologyBody Fluids and Circulation
Why should the Rh group be matched before transfusions?
Options
- ATo avoid formation of specific antibodies.
- BTo avoid incompatibility.
- CTo avoid erythroblastosis foetalis.
- DTo avoid anaemia and jaundice.
Correct answer
A. To avoid formation of specific antibodies.
Step-by-step solution
: Another antigen, the Rh antigen similar to one present in Rhesus monkeys (hence Rh), is also observed on the surface of RBCs of majority (nearly 80 per cent) of humans. Such individuals are called Rh positive (Rh+ve) and those in whom this antigen is absent are called Rh negative (Rh-ve). An Rh-ve person, if exposed to Rh+ve blood, will form specific antibodies against the Rh antigens. Therefore, Rh group should also be matched before transfusions . A special case of Rh incompatibility (mismatching) has been obse