Sysmex UF-1000i全自动尿沉渣分析仪的性能分析及临床应用

Clinical application analysis on the performance of Sysmex UF-1000i automated urinary sediment analyzer

目的探讨Sysmex UF-1000i全自动尿沉渣分析仪的临床应用情况。方法分别采用UF-1000i尿沉渣分析仪和显微镜检查法对2 000例临床标本进行检测,对比2种方法的结果,并分析UF-1000i尿沉渣分析仪产生假阳性的原因。结果检测白细胞(WBC),红细胞(RBC),管型和小圆上皮细胞的敏感性分别为99.2%,99.3%,94.7%和95.1%;检测上述成分的假阳性率分别为5.8%、6.1%、10.4%和4.6%;粘液丝、结晶、细菌、酵母菌、小圆上皮、脂肪滴和卵磷脂小体可能影响到UF-1000i对尿有形成分的检测。结论 Sysmex UF-1000i可以有效的检测尿液中的有形成分,当尿液中上述干扰成分呈阳性或增多时,显微镜镜检是十分重要的。

Objective To investigate the clinical application values of Sysmex UF-1000i automated urinary sediment analyzer.Methods 2 000 urine samples were determined by UF-1000i automated urinary sediment analyzer and microscopy.The results were contrasted,and the reasons of false positive in UF-1000i analyzer were analyzed.Results When using Sysmex UF-1000i analyzer,the detecting sensitivities of white blood cell（WBC）,red blood cell（RBC）,cast and small round epithelial cell were 99.2%,99.3%,94.7% and 95.1%,and the false positive rates of them were 5.8%,6.1%,10.4% and 4.6%,respectively.Many factors,like viscose rayon,crystals,bacteria,yeast-like fungus,small round epithelial cells,fat droplets and lecithin body may affect the determination of urine formed elements.Conclusions It is an effectual method to detect urinary sediments by Sysmex UF-1000i analyzer.It is very important to observe sediments by microscopy when all above interferences are positive or increase.