尿常规检测在尿路感染诊断中的价值初探

The Value of Urine Routine Test in the Diagnosis of Urinary Tract Infection

目的尿常规检测在尿路感染诊断中的价值。方法选取2017年1月至2018年1月200例在沈阳市七三九医院就诊的疑似尿路感染的患者,采用干化学中白细胞酯酶(LEU)、亚硝酸盐(NIT),尿有形成分计数中白细胞计数(WBC)、细菌计数(BACT)与尿路感染之间的关系。结果尿常规LEU、NIT、尿WBC、BACT的敏感性分别为58.5%、47.0%、82.4%、94.1%,特异性分别为66.7%、80.3%、27.4%、36.4%,阳性预测值分别为47.6%、75.9%、36.8%、43.2%,阴性预测值分别为75.9%、78.0%、76%、92.3%。结论在尿路感染中,使用NIT测定,特异性较高,阳性预测值较高,较为可靠。使用尿沉渣BACT测试时,阴性结构较为可靠,两种方法可以联合使用,应用于临床尿路感染的筛查。

Objective The value of routine urine test in the diagnosis of urinary tract infection.Methods From January 2017 to January 2018,200 cases of suspected patients with urinary tract infection,use dry chemical in leukocyte esterase(LEU),nitrite(NIT),urine tangible components counting of white blood cell count(WBC),bacterial count(BACT)and the relationship between the urinary tract infection.Results The urine routine LEU,NIT,the WBC,the sensitivity of the BACT were 58.5%,157.0%,82.4%,157.0%,specificity of 66.7%,80.3%,27.4%,36.4%,positive predictive value were96%,75.9%,36.8%,153.2%,negative predictive value of 75.9%,78.0%,75.9%and 78.0%respectively.Conclusion In urinary tract infection,NIT assay was used with high specificity and high positive predictive value.When the urine sediment BACT test is used,the negative structure is relatively reliable.The two methods can be used in combination to screen clinical urinary tract infection.