So I was wondering if anyone else could chime in on this. I have a few different scenarios, so if it wouldn't be to much to ask, please specify which one is being responded to. A.) If a patient comes in for pre-op labs to be done; how is the patient re-identified/verified when they come back the next day for admission? B.) A patient comes in for same-day surgery with blood on hold for OR; the patient is discharged that evening. The patient comes back in 2 days and the MD is requesting RBCs (still within 72 hr acceptability) Is the original sample still valid, or is a new sample required? C.) How is patient ID verified for patients that have multiple reoccurring transfusions on an outpatient basis? Thanks much!!