目的 究UF-1000i尿沉渣分析仪对孕妇尿检测结果的可靠性分析.方法 随机选择100例怀孕妇女中段尿及100例门诊患者中段尿,用UF-1000i尿沉渣分析仪、干化学分析仪及显微镜检查测定,对比三种方法的结果,分析UF-1000i尿沉渣分析仪产生假阳性的原因.结果 UF-1000i尿沉渣分析仪对孕妇尿的阳性预测值:白细胞为67.8%,红细胞为61.9%,管型为16.7%,上皮细胞为91.0%,结晶为57.1%.其他患者的阳性预测值:白细胞为89.3%,红细胞为83.3%,管型为65.5%,上皮细胞为93.6%,结晶为87.1%.干化学对孕妇尿的阳性预测值:白细胞为88.9%,红细胞为81.1%,对其他患者的阳性预测值:白细胞为96.1%,红细胞为81.6%.结论 UF-1000i尿沉渣分析仪对孕妇尿各参数的阳性预测值及干化学对孕妇尿白细胞的阳性预测值低于其他患者.因此当孕妇尿干化学与UF-1000i尿沉渣分析仪检测结果有差异时必须进行显微镜检查,对假阳性结果进行修正.%Objective To examine the reliability of urine testing by urinary sediment analyzer (UF-1000i) in pregnant women. Methods One hundred middle-urine samples were randomly collected from pregnant women and non-pregnant patients. Comparing the results of urine testing which were examined by three different methods, urinary sediment analyzer (UF-1000i),dry chemistry analyzer and microscopy,and finding the reasons that lead to? false positive results in urinary sediment analyzer (UF-1000i). Results The positive predictive values (PPV) of white blood cells (WBC),red blood cells (RBC), tube, epithelial cells and the crystal in urine testing from pregnant women by urinary sediment analyzer were 67. 8%,61. 9%, 16. 7%, 91.0% and 57. 1% , respectively, and from non-pregnant patients were 89. 3% , 83. 3% , 65. 5% , 93. 6% and 87. 1%. The PPV of WBC and RBC in urine testing from pregnant women by dry chemistry analyzer were 88. 9% and 81. 1% , respectively, and from non-pregnant patients were 96. 1% and 81. 6% , respectively. Conclusions The PPV in pregnant women were lower than in non-pregnant patients by urinary sediment analyzer (UF-1000i) and dry chemistry analyzer. Therefore,microscopic examination must be carried out and the false positive results should be modified when there are differences between urinary sediment analyzer (UF-1000i) and dry chemistry analyzer in urine testing from pregnant women.
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