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Marysya12 [62]
3 years ago
15

When a person donates blood, why is it necessary to find out his or her blood type?

Health
1 answer:
iVinArrow [24]3 years ago
7 0

Answer:

so that you can find a match for their blood type.

Explanation:

Certain blood types don't react well with others and cause their immune system to attack, while other blood types react fine with a certain one. Group o+, for example, can donate to any + blood type.

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