Efficiency of blood use and prospects for autologous transfusion in general surgery.

A 6-month retrospective audit of crossmatch and transfusion practice in a general surgical unit has been performed. Inefficiencies in blood ordering practices have been demonstrated and the value of performing a local audit to allow estimation of blood needs has been proven. Using criteria based on the suggested tariff for operations derived from this audit, only a small number of general surgical patients would be considered as potential autologous blood donors.