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, yeastlike 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.
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