Pre-analytical specimen labelling and processing errors in the ICU Pre-analytical specimen processing errors in the ICU
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Abstract
Introduction: Specimen rejections have been associated with increased in-hospital stay and cost. The majority of errors occur in the pre-analytic phase. Specimen rejection can lead to high rate of recollection, delay in result availability, and high rate of test abandonment. These factors affect patient care and safety.
Methods: This study conducted a retrospective review of Patient Safety Learning System (PSLS) reports for the intensive care unit (ICU) at The Ottawa Hospital General Campus (TOH) between 2010 and 2018, and a prospective review using interviews, surveys, and process mapping.
Results: From 2098 PSLS reports, 52.6% were related to laboratory specimen collection and processing (pre-analytic phase). Specimen mislabelling with the wrong patient identifier accounted for 9.8% of pre-analytical error reports, while 16.4% of errors were due to non-sufficient quantity (NSQ) of specimen. 12.2 % of pre-analytical error reports involved cytology specimens.
Conclusions: Pre-analytical errors are not only costly and resource draining, but may also place a burden on patients. Areas where errors were found include labels and requisitions stored in bedside cabinets, inconsistencies between specimen labels and requisitions, out-dated and difficult to access laboratory manuals, and non-sufficient quantity specimen collection. In the future we hope to start new initiatives to tackle these issues to improve patient safety and hospital efficiencies. This includes the development of a website for the laboratory manual, so that it is more easily accessible and user-friendly. With a new electronic medical record (EMR) system at TOH in 2019, we will explore the affects of pre-analytical processing of specimens.
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