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In cant find the answer anywhere!! please help!!!

2006-12-05 05:51:56 · 6 answers · asked by Samantha G 1 in Health Other - Health

Talking about blood only not organs
like when type O blood is given to a type A person, lets say, why dont the O antibodies clog up the protiens on the recipients cells????

2006-12-05 05:58:59 · update #1

ok ppl are misunderstanding my question... i need to know if the donors antibodies attack the recipients antigens ... i know the recipients antibodies attack the donors antigens i need to know if i can or does go both ways!!!

2006-12-05 08:28:10 · update #2

6 answers

Because it's the donor's organ(s) that is/are transplanted, not his/her immune system. It's the recipient's white blood cells that reject the donor organ, not the other way around.

2006-12-05 05:53:53 · answer #1 · answered by Anonymous · 1 1

Hi there !
who said that..?

Donor antibodies (present in plasma of the donor) can react against the red cell proteins of the patient...but nowadays, since "Blood components" are being used, we use only "red cell concntrates" or "packed red cells", which does not contain any appreciable amount of plasma...or antibodies...

If at all such antibodies cross over when / if we give "whole human Blood" the reactions occuring will NOT be fatal, as the quantity transfused is very little...Hence the name "minor cross matching" !!

2. just now saw the "amendment" to the question...."group O" contains "anti A" and "anti B antibodies" in the plasma...now the concept is we never use "whole blood"..only packed cells are used.....but even if we use whole blood, the reaction ....
anti A antibodies + antigen A of recipient OR
anti B antibodies + antigen B of recipient ..will be very minor and will never be fatal...

Details can be had from "Mollisons Text Book of Transfusion medicine" !!
hope it is clear...
Best wishes...

2006-12-05 06:03:53 · answer #2 · answered by suresh k 6 · 0 1

A person who needs a blood transfusion or an organ transplant is typed and crossmatched with that of the donor blood for as close a match as possible. Blood transfusions can be matched closely enough there is usually no side effects whereas organ transplant recepients have to take anti-rejection medications for the remainder of their lives.

2006-12-05 05:57:40 · answer #3 · answered by Country girl 7 · 0 2

They do react against them just in a controlled manner....that is another reason why blood transfusions are not good....Doctors use them as crutches

2006-12-05 05:54:18 · answer #4 · answered by True101 4 · 0 2

Sometimes they do, that's why some people have to get blood irradiated.

2006-12-05 05:57:57 · answer #5 · answered by nursgrad07 2 · 0 1

because of the anti rejection drugs they give you

2006-12-05 05:53:59 · answer #6 · answered by newheartin03 4 · 1 1

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