Evaluation of Measurement Uncertainty of 2 2 Clinical Chemistry Assays
10.3969/j.issn.1671-7414.2014.06.051
- VernacularTitle:22项生化检测项目测量不确定度的评价
- Author:
Anyu BAO
;
Yan LI
;
Chen CHEN
- Publication Type:Journal Article
- Keywords:
measurement uncertainty;
clinical chemistry;
external quality assessment;
internal quality control
- From:
Journal of Modern Laboratory Medicine
2014;(6):156-158
- CountryChina
- Language:Chinese
-
Abstract:
Objective To calculate the measurement uncertainty of clinical chemical analytes according to the internal quality control (IQC)and external quality assessment (EQA)data in clinical laboratory.Methods Collected the IQC data from January to June 2013 and EQA data between 2012~2014 of clinical chemistry in clinical laboratory.Calculated the measure-ment uncertainty and extended uncertainty according to the Nordtest criteria.Results It was effective to evaluate the uncer-tainty using IQC and EQA data.ALP ranked the highest extended uncertainty and Na+ ranked the lowest uncertainty.The range of uncertainty varies greatly,electrolyte 4.27~18.16,enzyme 8.12~24.88,small molecular 4.88~12.44,protein and lipids 4.78~13.1.Conclusion The evaluation of clinical chemistry uncertainty by IQC and EQA data is simple and practi-cal,which is beneficial for assurancing the measurement accuracy.
