Question
Write in brief about the following: Blood transfusion

Answer

Transfer of blood from one person to another is called blood transfusion. Ill or seriously injured people may need it. But compatibility of the blood groups is checked first. People with blood group AB are called universal recipients and people with blood group O are called universal donors.
Blood group Can donate blood to Can receive blood from
A A and AB A and O
B B and AB B and O
AB AB All groups
O All groups O

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