dhil

gee...thanks!!!

Sorry, I bet this is posted somewhere already, but I am under the gun and don't have time to search. We are debating only doing weak D testing on cordblood samples/newborns. We recently had an issue with a pregnant woman who typed as Rh negative Du negative and 10 weeks later Type Rh negative Du positive. Needless to say the physicians are confused and the patient is concerned and ******. The REd Cross verified the positive Du. We are moving towards classifying all Du positive patients as Rh negative. My question is, are other facilities doing this same practice of weak D testing on only cordblood/newborns if the mother is at risk for sensitization? AABB states that is when it is only necessary. Thanks, Oh yeah, we are still in the stone age with manual tube testing.

Immucor

Does this apply to patients that have a negative history of antibodies? We will get Pre-op patients 2 weeks before their surgery. Post-op we will use the pre-op blood specimen dated 2 weeks prior to do an immediate spin crossmatch. Is this appropriate?

soooo

Meaning you perform the antibody screen within 3 days or you expire all of your samples within 3 days?

So you have to read between the lines. Thanks Dave!

This is a reaccuring issue in our lab, we have a patient that previously had a positive anitbody screen, and now it is negative. Our debate is, if the patient hasn't been stimulated in the last 3 months (ie transfusion, pregnancy or surgery, then the outdate should be 3 weeks. Others say, there is a history, it should only be good for 72 hours. Has anyone else run into this issue? Where can I find the literature to support this? Thanks