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xueweiz3194
Joined: 19 Jun 2008
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 Posted: Wed Aug 13, 2008 4:50 pm Post subject: Question 34 |
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I have a question about #34, I thought a person with AB blood type is a universal recipient, so why would the genotype AB reject O serum?
Thank you. |
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admin
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| Posted: Thu Aug 14, 2008 11:18 pm Post subject: |
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AB blood type means that that person has both A and B antigens on their RBC`s meaning that in order to survive, they could not possibly have any anti-A nor anti-B antibodies in their serum. Thus type AB is a universal recipient (as you said) BUT for any blood type (referring to any type of RBC`s; for example, type A, B, AB or O).
However, if you were to give the serum of type A or type B or type O blood (any of which will contain antibodies to either type B, type A or both, respectively) would be very dangerous for someone expressing A and B antigens.
Thus the expressions that refer to universal donor (O) or recipient (AB) expressly refer to blood type (RBCs) NOT serum. |
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xueweiz3194
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| Posted: Sun Aug 17, 2008 2:26 pm Post subject: |
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admin
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| Posted: Thu Jul 30, 2009 3:22 pm Post subject: |
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