Which statement best describes AB blood regarding surface antigens and antibodies?

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Multiple Choice

Which statement best describes AB blood regarding surface antigens and antibodies?

Explanation:
AB blood has red blood cells with both A and B surface antigens, and the plasma contains no antibodies against A or B. Because there are no anti-A or anti-B antibodies to recognize and attack these antigens, AB individuals won’t mount an immune response to transfused A- or B-bearing cells from other types. This combination also explains why AB is the universal recipient in ABO transfusion scenarios. If there were anti-A or anti-B antibodies present, those would target donor cells bearing the corresponding antigens, which would be incompatible. Likewise, lacking both A and B antigens describes type O, where anti-A and anti-B antibodies are present in the plasma.

AB blood has red blood cells with both A and B surface antigens, and the plasma contains no antibodies against A or B. Because there are no anti-A or anti-B antibodies to recognize and attack these antigens, AB individuals won’t mount an immune response to transfused A- or B-bearing cells from other types. This combination also explains why AB is the universal recipient in ABO transfusion scenarios.

If there were anti-A or anti-B antibodies present, those would target donor cells bearing the corresponding antigens, which would be incompatible. Likewise, lacking both A and B antigens describes type O, where anti-A and anti-B antibodies are present in the plasma.

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