Fig. 2.

Error location within the administration process chain. Errors were located in various steps of the blood product donation process. Process steps: 1) blood product order; 2) blood group sample withdrawal and tube labeling; 3) laboratory handling of blood probes, screen and type, release of ordered blood; 4) transport and handling of blood products, 5) blood product administration, 6) patient identification, 7) others such as coagulation management, autologous processing, or donation (see table 1 for comparison). The administration process itself was by far the most frequent source of errors.