尿白细胞、细菌定量联合白细胞酯酶和亚硝酸盐定性试验对尿路感染的诊断价值

Culture results in the diagnosis of urinary tract infection and the significance of UF-100 urine analyzer,urine dry chemistry analyzer and urine

目的:研究尿沉渣分析仪、尿干化学分析仪与尿培养结果之间的关系,探讨尿常规检查对诊断尿路感染(UTI)的意义。方法:取无菌中段尿作尿培养、尿沉渣、尿干化学分析,分析培养结果与白细胞定量(WBC)、细菌(BAC)、白细胞酯酶(LE)及亚硝酸盐(NIT)间关系。结果:有效统计标本237例,尿培养阳性79例,阳性率33.3%;诊断UTI灵敏度最高的是WBC;阳性预测值最高为BAC;特异度最高为NIT。结论:尿常规结果判断UTI的准确性还不够高,只可为急性UTI提供最初的筛查结果;UTI的最终确诊还需细菌培养。

[ Objective] To study the relationship between urinary sediment analyzer, urine dry chemistry analyzer and urine cul- ture results, explore the urine routine examination in the diagnosis of urinary tract infection （ UTI ） significance. ~Method]the sterile urine respectively for urine culture, urine analysis, urine dry chemical analysis, quantitative analysis of urine culture re- suits and white blood cell （ WBC ）, bacteria, leukocyte esterase （ LE ） and rtitrite （ NIT ） and the relationship between. [ Re- suit] ： 237 cases of statistically valid samples, urine culture was positive in 79 cases, the positive rate of 33.3% ; diagnose UTI highest sensitivity is WBC; positive predictive value of the highest BAC; highest specificity for the NIT. [ Condusion]UTI urine results to detennine the accuracy is not high enough, only for acute UTI provide an initial screening results; UTI final di- agnosis needs to bacterial culture.