This should be true, but then it brings up the question I have asked before, which is why do they order the tests if it doesn't affect patient care? I have asked our Peds physician group and received no answer. Before this year we never did a cord blood workup unless it was to determine RhIG eligibility for mom or the baby was jaundiced. This year, however they are insisting on all O Pos moms as well. Of course they didn't tell us this, so we were caught off guard and short of supplies for DATs. When I asked for the evidence on which this decision was based, I was flatly ignored.