We have Meditech Magic and I believe only "Super Techs" or supervisors can edit the BB specimen expiration. It's under Requisitions, LIS menu, and 29 "edit BBK specimen expiration. I don't do it often because we are a small hospital, but if the patient has been admitted for surgery and hasn't been transfused/pregnant in 3 months, and then needs blood, I will extend it for a couple of days. I have to admit I haven't tried it with EXM though. I'll have to try that.