尿液白细胞、亚硝酸盐、细菌定量计数联合检测对尿路感染诊断的价值

摘要

Objective:Explore urine white blood cell(WBC)nitrite (NIT)quantitative bacteria counting (BACT)the value of combined detection of urinary tract infection diagnosis. Method:Randomly selected from June 2012-June 2013 in the hospital outpatient and the inpatient received a total of 803 patients with suspected urinary tract infection in urine specimens,to urinate sediment nitrite and urine specimen quantitative count,white blood cells and bacteria compared with the results of bacterial culture, and its calculating sensitivity,specific,positive/negative predictive value. Result: Compared with bacterial culture,BACT, NIT and the sensitivity of the WBC were73.7%, 59.1%and 97.2%,specificity were 96.8%,98.6% and 64.6%,positive expectations were 89.2%,94.0% and 49.8%,the negative expectations were 91.1%,87.0%and98.4%. Conclusion:White blood cells,nitrite and quantitative count of bacteria detection helps to early clinical diagnosis and treatment,improve the diagnosis of urinary tract infection of foresight,enhance diagnosis the credible degree of the result.%目的：探讨尿液白细胞（WBC）、亚硝酸盐（NIT）、细菌定量计数（BACT）联合检测对尿路感染诊断（Urinary tract infection，UTI）的价值。方法随机选取2012年6月~2013年6月在该院门诊和住院部接收的疑似尿路感染患者共803例尿液标本，对尿液标本进行尿尿沉渣亚硝酸盐和白细胞以及细菌定量计数检验，与细菌培养结果进行对比，并对其计算灵敏度、特异度、阳/阴性预测值。结果与细菌培养相比，BACT，NIT和WBC的灵敏度分别为73.7％，59.1％和97.2％，特异度为96.8％，98.6％和64.6％，阳性预期值为89.2％，94.0％和49.8％，阴性预期值为91.1％，87.0％和98.4％。结论尿沉渣白细胞和亚硝酸盐及细菌定量计数联合检测有助于临床早期诊断与治疗，提高对尿路感染诊断的预见性，增强诊断结果的可信程度。