In 2017, Dr. Mark Yazer appeared on this podcast to discuss the burgeoning interest in “Low-titer Group O Whole Blood (LTOWB)” for massive transfusions, particularly in trauma settings. Since then, more data and experience are available to guide the use of whole blood for trauma transfusion. Dr. Yazer updates us on the latest whole blood and incompatible plasma transfusion data, and clears up once and for all the "clear fluids" debate! Plus, there's some hockey trash talk...