UW2000全自动尿液分析工作站性能评价

目的评价重庆市天海公司生产的UW2000全自动尿液工作站性能。方法采用UW2000全自动尿液工作站对尿液有形成分红细胞(RBC)、白细胞(WBC)]的批内、批间精密度,线性,携带污染率,准确度进行评价;同时对尿液干化学成分的批内、批间精密度,准确度进行评价。结果尿液有形成分高、中、低值新鲜标本批内精密度RBC为15.6%、6.8%、20.3%,WBC为16.4%、10.5%、24.6%,中、低值质控批间精密度RBC为12.8%、13.2%,WBC为15.3%、22.8%;RBC线性范围为88~19 513个/μL,相关系数为0.991,WBC线性范围为7~8 254个/μL,相关系数为0.997;RBC及WBC携带污染率分别为0.00%、0.06%;RBC、WBC仪器检测与手工检测相关系数分别为0.992、0.995。尿液干化学成分高、低质控品批内、批间精密度符合率,准确度基本均在仪器要求范围内。结论 UW2000全自动尿液分析仪工作站大大节约了人力,降低了检测成本,提高了检测速度,经验证的项目结果可靠,能满足一般医院的工作需求,具有较高的临床应用价值。

The performance evaluation of UW2000 automatic urine system

Objective To evaluate the performance of UW2000 automatic urine system .Methods Using UW2000 automatic u‐rine system ,to evaluate intra ,inter batch precision ,linear ,carryover ,and the accuracy of the urine visible components(RBC ,WBC);at the same time intra ,inter batch precision and accuracy of of urine dry chemistry component .Results The within‐run coefficients of variation(CV% ) of RBC in high ,middle and low‐value samples were 15 .6% ,6 .8% ,20 .3% ,WBC were 16 .4% ,10 .5% ,24 .6% , respectively .Inter‐run precision of variation(CV% ) of RBC in middle and low‐value were 12 .8% ,13 .2% ,WBC were 15 .3% , 22 .8% ,respectively .The correlation coefficient of RBC was 0 .991 and the linear range was 88-19 513/μL .The correlation coeffi‐cient of WBC was 0 .997 and the linear range was 7-8 254/μL .And carryover rate was 0 .00% for RBC and 0 .06% for WBC ;The coefficient of UW2000 and microscopy on RBC and WBC were 0 .992 ,0 .995 .Within‐run precision ,inter‐run precision and accuracy for urine dry chemical composition of high ,low controls were all within the requirements of standards .Conclusion UW2000 auto‐matic urine analyzer workstation was not only save manpower ,but also with high detection speed and save cost .Importantly ,the re‐sults are reliability .In addition ,it could meet the working requirement in the general hospital ,and has great application value .