Regarding the timing of samples - if a patient has been transfused within the last 3 months the sample has to be within three days of the planned transfusion. I just wondered if anyone accepts overlap samples. So for example if a sample was received on Day 1 and blood was crossmatched and transfused, then blood was required 3 days later (which would be day 4) would you accept a sample bled on day 2 to crossmatch this blood?