Blood Transfusions and Coumadin

[Jeanne]

I will be receiving two units of blood tomorrow for severe anemia. Will that affect may coumadin level? Thanks.
Jeanne

 

[Guest]

Probably, because that blood will not have any warfarin in it.

 

[Lynlw]

I was wonderring how the CPDA1 (in the bags) would effect the blood in a body, would that show up in the INR or would you actually be a little more anticoagulated then the INR would suggest? lyn

 

[Guest]

It doesn't seem to me that it affects the INR. Remember that the INR only measures a very small part of the clotting cascade. Many things affect clotting but do not show up in the INR - aspirin for example.