THE DIRECT ANTIGLOBULIN-TEST AND THE ELUT ION TEST - THE EVALUATION OF A QUALITY-CONTROL IN BLOOD-TRANSFUSION CENTERS

The Societe Francaise de Transfusion Sanguine and the Centre National de Reference pour les Groupes Sanguins performed a quality control to evaluate the performances of two serological tests: the Direct Antiglo bulin Test (DAT) and the Elution test. Among the 110 Blood Transfusion Centers participating in this control, 80 (73%) returned a result. Of these, 68 results were correct for the DAT (85%; positive for type Ig G) and 31 results were correct for the elution (39%; anti-FY1). This c ontrol gave the opportunity to confirm the main procedures used in rou tine testing on a national scale. The analysis of the results underlin es the importance of the choice of a standardized technique for these tests. Such controls are useful to appreciate the quality of the routi ne tests and to find the means to improve them.