Define the blood group system

1.	Define the blood group system
Answer» The blood grouping system plays a very important role during the blood transfusion. If another blood type is introduced into our body, our immune system recognizes it as foreign and attacks it, resulting in a transfusion reaction. Mismatches with the ABO and Rh blood types result in most serious and life-threatening transfusion reactions. Hence, it is advisable to have a blood group checked before the blood transfusion.

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