Lean six sigma process improvement in specimen receiving to improve stat chemistry turnaround times
Publish place: Modern Medical Laboratory Journal، Vol: 4، Issue: 1
Publish Year: 1399
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_MML-4-1_001
تاریخ نمایه سازی: 24 اردیبهشت 1401
Abstract:
Objective: As a consequence of stat turnaround times (TATs) chronically exceeding ۶۰ minutes, our laboratory was facing pressure to divert limited resources toward the implementation of an emergency department satellite laboratory. Peer-reviewed literature in clinical laboratory quality assurance and improvement indicates that between ۶۰-۷۰% of errors occur at the pre-analytical level. Thus, we sought to improve overall TATs by focusing on reducing pre-analytical lag times. Lean six sigma process improvement owes its origins to industry, and may be universally applied in healthcare settings to improve outcomes. We report the application of Lean six sigma process improvement tools in the clinical laboratory specimen accession and processing area of a busy tertiary care center to improve chemistry stat TATs.
Methods: The prospective before-and-after redesign encompassed a detailed evaluation of existing system, assessment of established monitors and historical data, formulation and implementation of a plan, and post-move data collection and analysis. Allocation of laboratory space was based on Lean six sigma quality improvement methods. Test TAT and volumes were obtained from the LIS. Spaghetti diagrams were utilized to assess workflow in the existing space and in layout planning for the new space. An assessment of the pre-analytical steps in the receiving and processing area, in tandem with pre and post move Pareto chart data enabled the calculation of the reduction of defects per million opportunities that could be ascribed to this effort.
Results: ۱۲ months mean ED CMP TATs before the move was ۴۴.۴ minutes with ۹۰% of results reported in ۶۰ minutes or less; after the move this improved to a mean of ۳۷.۱ minutes with ۹۰% of results reported in ۴۹ minutes or less. ۱۲-month ED troponin mean TAT was ۴۹.۵ minutes with ۸۳% of results reported in ۶۰ minutes or less; after the move this improved to mean TAT of ۴۳.۴ minutes with ۹۰% of results reported in ۵۵ minutes or less. Given seven touch points per result, this project enabled a ۷۵% reduction in defects per million opportunities.
Conclusions: Lean-six sigma tools facilitated the identification and elimination of inefficiencies in specimen receiving to enable sustained improvements in TATs. Thus, defining and measuring problems, planning, taking necessary steps and implementing them are effective techniques to improve throughput in preanalytical specimen handling. The one-time expenses associated with the moves were minimal, and the cost-avoidance of satellite laboratory oversight and operation is substantial. Lean six sigma techniques can be applied in a cost-effective manner to minimize preanalytical wastes and improve patient care.
Keywords:
Authors
Faisal Huq Ronny
Department of Pathology, Westchester Medical Center Valhalla, New York, NY۱۰۵۹۵
Manal Almadani
Department of Pathology, Westchester Medical Center Valhalla, New York, NY۱۰۵۹۵
John Fallon
Department of Pathology, Westchester Medical Center Valhalla, New York, NY۱۰۵۹۵
Patricia Adem
Department of Pathology, Westchester Medical Center Valhalla, New York, NY۱۰۵۹۵
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