Applejw1,
Sorry for the ambiguity. I did mean treating the screening cells to store for an extended period of time. We were looking into validating a method in which we are pre-treating Screening Cells 1 and 2, so when a known DARA patient comes for a subsequent Type/Screen, we will just run the primary screen and if it comes up negative, no further workup needs to be done and K-negative RBCs will be XM'd and issued.
Thank you, Cliff!