[The type and screen method of blood requisition in General Hospital Zrenjanin]

The basic principle of patient's chemotherapy is that its performance is rational, safe and of high quality. In order to rationalize the whole process, the Transfusiology Committee has decided to introduce the Type and Screen method (typifying of blood types and screening of antibodies) in pre-transfusion testing in General Hospital "Dorde Joanovic" in Zrenjanin. The method represents the strategy of clear defining and standardizing of the blood requirement process during various elective surgical operations.

In order to record chemotherapy efficiency, the following parameters are used: crossmatch/ transfusion ratio, transfusion probability and transfusion index. These parameters give us exact data that enable us to understand whether adequate blood requisition is made. The aforementioned parameters are followed both before and after the introduction of the Type and Screen method. RESULTS. Since the Type and Screen method was introduced, the percentage of the reserved blood has been used more efficiently, i.e. the number of patients taken off the reservations list has been reduced, which can be seen from the correction of transfusion probability from 44.96 to 61.28 and transfusion index from 0.36 to 0.60. Crossmatch/transfusion ratio has changed from 2.33 to 1.81 after the Type and Screen method was introduced, which implies that deplasmatised erythrocytes reservation has been rationalized.

By following the above parameters, data have been obtained which point to the rationalization in blood reservations, resulting in greater number of blood units available. The "Type and Screen" list has become a standard in our hospital when it comes to blood products requisition.