Results of external quality assessment of dry chemical urine of Hunan province in 2004-2008

Objective To study the influencing factors on the quality of dry chemical urine test of clinical laboratories of Hunan province,and to propose the corresponding improving methods.Methods To analyze the data of external quality assessment (EQA) and relevance results of site testing in 2004-2008.Results Laboratories attending external quality assessment of dry chemical urine of Hunan started from 157 up to 214 in 5 years.The qualified rates of laboratories were 80.3% (2004),89.7% (2005),and 93.8%-94.1% (2006-2008),respectively.The PT values and pass rates of urobilinogen (89.2%,81.2%),leucocyte(91.6%,89.6%),glucose(91.9%,89.6%) were relatively low,while others were higher than 95%.There were 101 laboratories got site testing,the average qualified rate was 95.1%,but we still found many problems in questionnaire survey.Conclusion The results of dry chemical urine test of clinical laboratories of Hunan are not satisfying.The low EQA values of some laboratories are related with factors such as lacking internal quality control,not matching using of indicator paper and urine analyzer,and inappropriate maintenance of instrument.