NDLI: Toward standardization of quality assessment in laboratory medicine by using the same matrix samples for both internal and external quality assessments

Content Provider	Springer Nature Link
Author	Unsal, Ibrahim Coskun, Abdurrahman Serteser, Mustafa Inal, Tamer C. Ozpinar, Aysel
Copyright Year	2010
Abstract	The main purpose of quality assurance procedures in clinical laboratories is to ensure that test results are appropriate to maintain excellence in the diagnosis, monitoring, and treatment of disease. However, in current practice, no standardized procedure or frequency for the evaluation of methods exists, particularly in external quality assessment. Furthermore, different quality control materials are typically used for internal and external quality assessment. To overcome these discrepancies, we used samples with the same matrix for both internal and external quality assessments of a group test performed in our laboratory. We then calculated total error using real bias (target value obtained by reference method) and the imprecision of each test and compared our results with the total error allowable, derived from biological variation data. We suggest that the strategy of using the same matrix samples for both internal and external quality assessment is cost-effective, can be readily used by staff, and will facilitate the standardization of quality control in clinical laboratories.
Starting Page	621
Ending Page	627
Page Count	7
File Format	PDF
ISSN	09491775
Journal	Accreditation and Quality Assurance
Volume Number	15
Issue Number	11
e-ISSN	14320517
Language	English
Publisher	Springer-Verlag
Publisher Date	2010-09-07
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	External quality Biological variation Quality control Bias Total allowable error Laboratory standardization Marketing Ecotoxicology Biochemistry Analytical Chemistry Commercial Law Food Science
Content Type	Text
Resource Type	Article
Subject	Chemistry Instrumentation Chemical Engineering Safety, Risk, Reliability and Quality

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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