Two unit of O Neg, tagged with a dummy pt name (Emergency 101 or Trauma 1), segments previously taken off, and stored in refrigerator. The blood is handed off immediately (in cooler) and issued under dummy name, along with request for uncrossmatched blood. When pt demograpics arrive, the units are returned in computer, then allocated to "real" pt, and tags are sent along. Proceed with testing on pt's sample, when it comes. No waiting, no pressure. Too bad it's not being done in my present institution!