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Error tracking in a clinical biochemistry laboratory
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Pal Bela Szecsi
Published/Copyright:
August 7, 2009
Abstract
Background: We report our results for the systematic recording of all errors in a standard clinical laboratory over a 1-year period.
Methods: Recording was performed using a commercial database program. All individuals in the laboratory were allowed to report errors. The testing processes were classified according to function, and errors were classified as pre-analytical, analytical, post-analytical, or service-related, and then further divided into descriptive subgroups. Samples were taken from hospital wards (38.6%), outpatient clinics (25.7%), general practitioners (29.4%), and other hospitals.
Results: A total of 1189 errors were reported in 1151 reports during the first year, corresponding to an error rate of 1 error for every 142 patients, or 1 per 1223 tests. The majority of events were due to human errors (82.6%), and only a few (4.3%) were the result of technical errors. Most of the errors (81%) were pre-analytical. Of the remainder, 10% were analytical, 8% were post-analytical, and 1% was service-related. Nearly half of the errors (n=550) occurred with samples received from general practitioners or clinical hospital wards. Identification errors were relatively common when non-technicians collected blood samples.
Conclusions: Each clinical laboratory should record errors in a structured manner. A relation database is a useful tool for the recording and extraction of data, as the database can be structured to reflect the workflow at each individual laboratory.
Clin Chem Lab Med 2009;47:1253–7.
Received: 2009-4-13
Accepted: 2009-6-28
Published Online: 2009-08-07
Published in Print: 2009-10-01
©2009 by Walter de Gruyter Berlin New York
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