How can type AB blood receive from O, because O has A and B antibodies? Wouldn't the O's A and B antibodies attack the A and B antigens in the AB recipient blood?

Md Ariful Islam

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Md Ariful Islam

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While the best transfusion option is always the same blood group, this is not always possible.

The O group (universal donor) is called so because of its ability to be transfused into a person with any other blood group.

Since the unit that is being transfused is generally much smaller than the person's actual blood volume, the presence of anti-A and anti-B antibodies in the O blood group is insufficient to cause a severe immunological reaction in the recipient.

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