Red cell genomics is an evolving field, explains Meghan Delaney, acting assistant professor in the Department of Laboratory Medicine at the University of Washington and assistant medical director with Puget Sound Blood Center. Discover how DNA is used to predict the antigens expressed on the surface of red cells, and how high-throughput platforms are used for screening blood donors as well as patients who may require phenotypically-matched red blood cell units. From the Series:Laboratory Medicine Grand Rounds