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Year : 2014  |  Volume : 6  |  Issue : 5  |  Page : 224-228

Types and frequency of errors during different phases of testing at a clinical medical laboratory of a teaching hospital in Tehran, Iran

Department of Clinical Pathology, Central Laboratory,Imam Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran

Correspondence Address:
Alireza Abdollahi
Associate Professor of Pathology,Division of Clinical Pathology, Imam Hospital Complex,Tehran University of Medical Sciences, Tehran
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1947-2714.132941

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Background: According to official data, 60-70% of clinical decisions about hospitalization and discharge are based on laboratory results. Aims: The objective of this study is to examine the frequency of errors before, during, and after analysis in a major medical laboratory. Materials and Methods: This descriptive, cross-sectional study was conducted throughout 2012 (January-December 2012). Errors are recorded by the Quality Control Committee in a specially designed record. Results: A total of 303,866 samples, 2,430,928 tests were received for analysis. The total number of errors was 153,148 (6.3%) (116,392 for inpatients and 36,756 for outpatients). Analysis of the results revealed that about 65.09% of the errors occur across preanalytical phase, whereas 23.2% and 11.68% are related to analytical and postanalytical phase, respectively. Conclusion: More than half of the laboratory errors are related to preanalytical phase; therefore, proper training and knowledge of intervening factors are essential for reducing errors and optimizing the quality.

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