Foutieve resultaten van veneuze bloedafname in het klinisch laboratorium

Abstract

Faulty clinical laboratory results Despite the high quality performance of numerous clinical laboratories, laboratory errors still exert negative effects on patient outcome. Many pre-analytical, analytical and post-analytical variables which are frequently beyond the control of the laboratory, can influence the final results. Most of the identifiable errors can be traced in the pre-analytical phase: incorrect patient identification, inadequate phlebotomy technique, improper sample handling. During the analytical phase, assay interference can have a considerable effect on the results, but may remain difficult to identify. Inaccuracy of reference values can constitute an important post-analytical problem causing an incorrect interpretation of the laboratory data