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Items for "proficiency testing"

Point-of-care International Normalised Ratios: UK NEQAS experience demonstrates necessity for proficiency testing of three different monitors

External quality assessment (EQA) or proficiency testing is widely considered to be necessary for International Normalised Ratio (INR) determinations performed in conventional laboratory settings...

Keywords: INR, NPT/POC, proficiency testing

11/2006 | Thrombosis and Haemostasis, Schattauer

Does external evaluation of laboratories improve patient safety?

Laboratory accreditation and External Quality Assessment (also called proficiency testing) are mainstays of laboratory quality assessment and performance...

Keywords: accreditation, Evaluation, laboratory, proficiency testing

06/2007 | Clinical Chemical Laboratory Medicine, Walter de Gruyter

An iterative method for improved estimation of the mean of peer-group distributions in proficiency testing

In proficiency testing (PT), the peer-group mean is conventionally computed after twice removing values exceeding the mean±3 SD...

Keywords: Gaussian distribution, outliers, proficiency testing, robust mean, target value

04/2005 | Clinical Chemical Laboratory Medicine, Walter de Gruyter

Impact of a common CV evaluation scheme on overall laboratory performance: 8-year experience of a large national proficiency testing program in Japan

In proficiency testing (PT), it is difficult to set rational criteria for determining target values and allowable limits...

Keywords: between-method coefficient of variation, iterative method, proficiency testing, target value, within-method coefficient of variation