Analysis the results of 23 Clinical biochemistry Laboratorys in site testing and EQA
objective To understand the real level of detection of clinical biochemistry laboratory and to investigation the authenticity of EQA scores,compared with EQA By site testing. Methods After the end of the first EQA in 2012, Site testing to 23 secondary and tertiary hospital of the Chenzhou area. Providing 5 Double blind sample. Requirements return results on the spot. To compare the difference between EQA and site testing. Results The results of site testing lower than EQA results(P <0.05). There were statistical significance in most of the raw data between site testing and EQA in 20 detection project. Conclusion Part of the labs are not correctly treat EQA, A single EQA scores can not reflect the real level of the laboratory.