alleryStart learning →Which blood type is described as the universal recipient?
AType O negative
BType AB positive
CType A positive
DType B negative
Answer & Solution
Correct answer: B. Type AB positive
1. A recipient is limited by the antibodies circulating in the recipient plasma.
2. Type AB blood carries both the A and the B antigen, so neither anti-A nor anti-B antibody is produced.
3. An Rh positive recipient can also accept both Rh positive and Rh negative blood, since the D antigen is already self.
4. Type AB positive therefore has no ABO or Rh antibody to react against donated cells and can theoretically receive any type.
5. Type O negative is the mirror case, the universal donor, whose value lies in its cells rather than its plasma.
_Source: OpenStax Anatomy and Physiology (CC BY 4.0), Ch 18 "The Cardiovascular System: Blood", section 18.6 Blood Typing_
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