多因素致检品RBC异常复检结果分析

目的 :探讨 UF- 10 0全自动尿沉渣分析仪测定红细胞 (RBC)的影响因素及镜检的重要性。方法 :对 UF- 10 0全自动尿沉渣分析仪检测的 331例红细胞 RBC阳性尿液标本进行复查镜检。结果 :有 79例为假阳性 ,占 2 3.9% ,其中结晶所致红细胞假阳性 5 4例 ,占 6 8.3% ,类酵母菌所致假阳性 5例 ,占 6 .3%。结论 :多因素特别是盐类结晶易致 UF- 10 0测红细胞产生假阳性 ,镜检具有重要意义

Re-examined Outcomes of Erythrocyte Abnormality in Urinary Sediment Caused by Several Factors

Purpose To deal with the importance of microscopic examination and several factors interfering with the accuracy of RBC determination by UF-100 automatic urinary sediment analyzer. Methods 331 RBC positive urine samples that had been detected by UF-100 automatic urinary sediment analyzer were microscopically re-examined. Results Among the 331 positive samples 79 were false-positive (23.9 %), of which 54 resulted from salt crystals (68.3 %); 5 were caused by parayeasts (6.2 %). Conclusion Certain factors, especially salt crystals, are prone to make RBC testing false-positive at UF-100. Microscopic examination is therefore of great importance.