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[目的]探讨尿液标本放置不同时间对尿沉渣检查结果的影响.[方法]对尿液标本采集后即刻、放置1h、2h、4h、6h尿沉渣相关指标进行检测,并观察放置不同时间点尿中红细胞形态变化情况.[结果]室温、4℃温度下尿液标本放置4h、6h时红细胞计数、管型计数、大红细胞计数较即刻均显著下降,溶解红细胞均显著增多,且差异有显著性(P＜0.05);室温、4℃温度下尿液标本放置6h时白细胞计数较即刻显著下降(P＜0.05);不同时间点上皮细胞计数、小红细胞计数比较差异无显著性(P＞0.05).[结论]尿液标本放置时间对尿常规检验中尿沉渣检查结果影响较大,建议尽量在标本采集后4h内完成检测;标本放置温度对红细胞、白细胞、管型计数影响不大.“,”[Objective] To investigate the effect of different storage duration of urine specimens on urinary sediment in routine urine test.[Methods]The urinary sediment were collected and related indexes detected at 1h,2h,4h and 6h of storage.The changes in morphology of red blood cells were observed at different time points.[Results]Under 4℃ room temperature,the red blood cell count,urinary cast count and macrocyte count after 4h and 6h of storage were significantly lower than those at immediate collection while lysed erythrocytes were increased (P ＜0.05).Under room temperature and 4℃,the white blood cell count after 6h of storage was significantly lower than that at immediate collection (P ＜0.05).The epithelial cell count and microcyte count showed no significant differences at different time points (P ＞0.05).[Conclusion]The storage duration of urine specimens has great effect on the examination results of urinary sediment.It is suggested that the examination be completed within 4h after collection of specimens.The storage temperature has little effect on red blood cells,white blood cells and urinary cast count.