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影响中段尿细菌培养结果的因素探讨 被引量:4

INVESTIGATE THE INFLUENCING FACTORS TO BACTERIAL CULTURE OF MEDISTREAM URINE
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摘要 目的:探讨导致中段尿细菌培养结果不明确的原因,为临床正确分析中段尿细菌培养的意义提供依据。方法:采集155例患者中段尿进行细菌培养;对其中初次培养结果不明确的受检者,以膀胱穿刺方法采集尿标本,同时进行细菌培养。结果:155例初次培养的标本中,68例单一菌生长,菌落计数大于105CFU/ml;26例48小时培养无菌生长;39例单一菌生长,菌落计数小于105CFU/ml(A);22例两种以上细菌生长(B)。A中28例膀胱穿刺与两次中段尿培养结果一致,其余不同;B中2例膀胱穿刺与中段尿一致,其余不同。结论:中段尿单一细菌生长、菌落计数大于105CFU/ml时诊断意义明确;两种以上菌生长多为标本不合格;严格执行中段尿标本采集方法,是提高结果准确性的有效方法。 Objective:To investigate the reasons why the results of bacterial culture of medistream urine is indefinite, and provide bases for exactly analyzing the value of bacterial clulture of medistream urine in clinic. Methods: 155 cases medistream urine were collected and for bacterial culturing. The samples that the culturing results were indefinite in the first culturing were recollected by puncturing the urinary bladder and cultured for the second time.Results:Among the 155 medistream urine samples cultured for the first time: 68 samples single bacterium grew and the number of colony was more than 105CFU/ml;28 samples had no bacterium growth cultured for 48h;39 samples single bacterium grew but the number of colony was less than 105CFU/ml (A);22 samples more than 2 kinds of bacteria grew (B).In A,28 samples the culturing results of urine obtained by puncturing urinary bladder were same as the culturing results of medistream urine twice; In B, 2 samples were the same.Conclusions:Single bacterium growth and colony exceeding 105CFU/ml have identified diagnostic value for urinary tract infection; the samples that had more than 2 kinds of bacteria growth were disqualification in general.Strictly execute the method collecting medistream can effectively elevate the accuracy of bacterial culturing results.
作者 张敏 张迎春
出处 《承德医学院学报》 2007年第4期368-370,共3页 Journal of Chengde Medical University
关键词 中段尿 细菌培养 尿路感染 Medistream urine Bacterial culture Urinary tract infection
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