Objective To analyze the difference between the results of UF-1000i urine sediment analyzer, AX-4280 urine dry chemistry analyzer and urine sediment test by microscopy, and to establish microscope re-examination rules. Methods RBC, WBC and CAST in urine samples were detected by UF-1000i and AX-4280,and then the results were confirmed by microscopy detection. Results The sensitivity of UF-1000i for the detection of RBC and WBC was higher than AX-4280,but specificity was lower. The negative predictive value of combined detection of the two analyzers was 100. 00%. There was significant difference for the detection of WBC, RBC and CAST between UF-1000i and microscopy detection, with χ2 value of 16. 41,13. 47 and 16. 41(P<0. 05). The re-examination rules fit for this assembly line was established. Conclusion When there was difference between the results of UF-1000i and AX-4280,microscope detection should not be replaced completely by UF-1000i. Re-examination rules should be referred to perform re-examination to ensure the accuracy of test results.%目的 分析尿有形成分分析仪、尿干化学分析仪及显微镜尿沉渣结果 的差异,建立显微镜复检规则.方法 以UF-1000i尿有形成分分析仪及AX-4280尿干化学分析仪构成检测流水线,对临床尿标本先用流水线进行红细胞(RBC)、白细胞(WBC)及管型(CAST)检测,再用显微镜进行结果 验证.结果 UF-1000i检测RBC、WBC灵敏度高于AX-4280,但特异度低于AX-4280;流水线检测尿标本的阴性预测值达100.00%.UF-1000i分析仪与显微镜尿沉渣WBC、RBC、CAST检测结果 存在明显差异(χ2值分别为16.41、13.47、16.41,P＜0.05).建立适合该流水线的显微镜复检规则.结论 UF-1000i和AX-4280分析仪检测结果 有可能存在差异,此时不能以UF-1000i代替显微镜尿沉渣检查,需参照相应的复检规则进行复检,保证检测结果 准确性.
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