Yahoo Answers is shutting down on 4 May 2021 (Eastern Time) and the Yahoo Answers website is now in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Blood Transfusion Question?

An AB person had A and B antigens and no antibodies against A or B groups.

However, an O blood group person has both antibodies against A and B types. How come AB can be recipients of O blood when there are antibodies against it?

2 Answers

Relevance
  • 1 decade ago
    Favourite answer

    Because the antibodies are found in the blood plasma, which is not transplanted. The red blood cells are seperated from the plasma, white blood cells, platelets, etc and only these are transplanted.

  • Jess
    Lv 4
    1 decade ago

    Andrew is right. Antigens are on the cells, antibodies in the plasma. You are transfusing red cells with antigens (O doesn't have any antigens, thus it's compatible with all types). That's why it's safe.

    Source(s): medical technologist, I type and crossmatch blood every day.
Still have questions? Get answers by asking now.