We currently use Cerner for blood banking and I just have a few questions. When using the computer crossmatch, do we still need to use an issue date and time and signatures of who it was issued to and issued by and visual inspection according to the AABB guidelines? Also when dispensing blood in Cerner, do you dispense blood before it is picked up by nurse or at the time it is picked up. We have been told that if you do not dispense blood when blood is given that it is an FDA infringement. What exactly is happening in dispense mode? Is this just the trail that the unit is even blood bank? Thanks!