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Ten years of preanalytical monitoring and control: Synthetic Balanced Score Card Indicator
Maria Salinas1, Maite López-Garrigós1, Emilio Flores2
1Clinical Laboratory, Hospital Universitario de San Juan, San Juan de Alicante, Spain ; Department of Biochemistry and Molecular Pathology, Universidad Miguel Hernandez, Elche, Spain.
Introduction:
Preanalytical control and monitoring continue to be an important issue for clinical laboratory professionals. The aim of the study was to evaluate a monitoring system of preanalytical errors regarding not suitable samples for analysis, based on different indicators; to compare such indicators in different phlebotomy centres; and finally to evaluate a single synthetic preanalytical indicator that may be included in the balanced scorecard management system (BSC).
Materials And Methods:
We collected individual and global preanalytical errors in haematology, coagulation, chemistry, and urine samples analysis. We also analyzed a synthetic indicator that represents the sum of all types of preanalytical errors, expressed in a sigma level. We studied the evolution of those indicators over time and compared indicator results by way of the comparison of proportions and Chi-square.
Results:
There was a decrease in the number of errors along the years (P<0.001). This pattern was confirmed in primary care patients, inpatients and outpatients. In blood samples, fewer errors occurred in outpatients, followed by inpatients.
Conclusion:
We present a practical and effective methodology to monitor unsuitable sample preanalytical errors. The synthetic indicator results summarize overall preanalytical sample errors, and can be used as part of BSC management system.
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