When you have two bags of red cells from the same donation and they have they same unit number, is it necessary to antigen type segments from each bag or if one part is typed can you just make the presumption that the other bag should type the same way? I think I know what the answer is, but I just want to throw this out and see what I get.:cool:

If you are a blood center I would say that yes, only one typing is necessary. If you are an end user, I'd retype both if they came to me.

Same here, you probably don't need to, but I would test both.

I would test both units. You have to think of worst case. What if one of the unit was mislabeled!!!!

We would probably test them both too. Otherwise you would be telling your computer that you tested a specific unit (DIN & prod code), when you did not. You couldn't leave it to human logic and only enter it for the first unit or the computer won't think the second unit is compatible with a patient with the antibody. And, above all, we must keep our computers happy.

As an end user we test both. I have seen an instance where the donor unit was mislabeled from the blood center.