Hello, I would like to ask what you would have done in a situation that I was involved in. We had a 1-2 week post op cardiac patient who had been unstable since her surgery. We were issuing IgG-crossmatch compatible red cells for a non-specific antibody without any problems. On the day in question, as a last ditch life saving measure, her chest was opened in her room to try to control bleeding. A nurse called down for blood but could not provide the patient's blood bank id number. I knew what was happening so rather than insist or argue, I said fine but it will have to be considered uncrossmatched, inform the doctor. I pulled a crossmatched (O pos) unit off the shelf and wrote in black permanent marker "uncrossmatched" on the tag and placed an uncrossed sticker on the transfusion record, where the doctor would later sign and indicate the reason for giving uncrossed. This created issues. The doctor felt (initially) that this contributed to her demise. Our medical director said I should not have said it was uncrossmatched because it had in fact, been crossmatched. The doctor later understood it was compatible but still insisted that we note in the chart that the blood was crossmatched. (I was later informed that the nurse crawled under the bed to verify the patient's bb id number. ) So my question is, what would you have done in this situation. Do you have policies in place for these sorts of exceptions? Use alternate form of patient id? This patient was an O, so I had no problem giving out O uncrossed. What if she was an A with an antibody? I still say no id, no crossmatch. This happened a couple of months ago but is still nagging at me. Thanks in advance for your input.