Abstract
For the effective use of blood, it is advantageous to introduce “Maximum Surgical Blood Order Schedule (MSBOS) ”and “Type and Screen (T & S)”. Unfortunately, we have not introduced these devices in. our institution, because we have not yet obtained cooperation from comedical staffs who are not well familiar with the devices. To overcome this situation, we tried to use blood effectively according to the “blood selection criterion”, when we prepared blood for blood transfusion during operations. We first used the blood that had longer effective period, when the ratio of transfusion requirements for a surgical operation was ranging from 0 to 30%. When the ratio was ranging from 61 to 100%, we first used the one that had shorter effective period. When the ratio was ranging from 31 to 60%, we took the following method; when the ratio of crossmatched blood to transfusion (C/T) was equal or greater than 2.1, we first used the blood that had longer effective period. When the ratio was ranging from 1.0 to 2.0, we first used the one that had shorter effective period. As a result, the ratio of blood that was returned to the Blood Center or unable to useb decreased from 3.78% in 1983 to 0.90% in 1992. We conclude that the “blood selection criterion” is advantageous for the institutions that have not introduced MSBOS or T & S, or for the blood administration without the Blood Transfusion Center.
