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Why can RH+ blood be given only once to a non-sanitized person who is RH-

User Romanito
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Answer:

Rh+ blood can be given only once to a non-sensitized person who is Rh- because it develops antibodies and after one exposure blood will be rejected. If an Rh- person is sensitive to Rh+ blood and receives a transfusion of Rh+ blood, it is likely that the donors cells will be rejected and the blood cells will be killed.

User Valerian Pereira
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