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目的:分析尿液定量培养结果与干化学法亚硝酸盐定性检测的相关性。方法:在医院临床病人中抽取400例留取清洁中段尿,进行尿液定量培养和亚硝酸盐检测,将其中尿培养鉴定结果为有大肠埃希菌生长的结果和其对应的干化学法亚硝酸盐检测结果进行记录统计,相关性分析。结果:干化学法亚硝酸盐检测结果为阳性的尿标本,其定量培养结果为大肠埃希菌的生长数量均大于10^5每毫升;干化学法亚硝酸检测结果为阴性的尿标本,其定量培养结果为大肠埃希菌的生长数量不定,大于或小于10^5均有。结论:大肠埃希菌可以产生硝酸盐还原酶,可以将膀胱中的硝酸盐还原成亚硝酸盐,这样通过检测尿液中的亚硝酸盐可以及时发现尿路感染及时治疗。
OBJECTIVE: To analyze the correlation between urine quantitative culture results and qualitative determination of nitrite in dry chemical method. Methods: In the hospital, 400 cases were taken from the clinical clean-up urine for quantitative urine culture and nitrite detection. The urine culture results were identified as Escherichia coli growth and its corresponding dry chemical method Nitrate test results were recorded statistics, correlation analysis. Results: The urine samples with positive result of nitrite test by dry chemical method showed that the quantity of growth of Escherichia coli was more than 10 ^ 5 per milliliter in quantitative culture results. The urinary specimen with negative result of nitrous acid test by dry chemical method was Quantitative culture results for the growth of Escherichia coli variable number, greater than or less than 10 ^ 5 are. Conclusion: Escherichia coli can produce nitrate reductase, which can reduce the nitrate in the bladder to nitrite, so timely detection of urinary tract infection by detecting nitrite in the urine can be timely treated.