What would happen if a transfusion recipient with type A- blood was given type A+ donor blood? (Assume the recipient had never been exposed to the Rh factor.)
A. The recipient's red blood cells would be agglutinated by the donor's anti-A antibodies.
B. The recipient would begin to produce anti-Rh antibodies in a few days, which would agglutinate the donor's red blood cells.
C. Due to the influx of Rh antigens, the recipient's blood type would change from A- to A+.
D. There would be no effect on the recipient; this is a compatible transfusion.
E. There would be an immediate transfusion reaction, and the recipient would become very ill or even die.
Answer: B
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