概括
对尿液进行细菌和白细胞的显微镜检查是儿童脏诊所培养样本预选择的可靠方法. 这种方法有助于准确预测培养结果,提高诊断效率.
科学领域:
- 儿科脏病学 儿科脏病学
- 临床微生物学 临床微生物学
- 诊断病理学的诊断病理学
背景情况:
- 尿路感染 (UTI) 在儿童中很常见,需要准确有效的诊断方法.
- 微观尿液分析是一种快速的初步检测,用于检测细菌性尿症和皮尿症.
- 定量细菌培养仍然是诊断尿路感染的黄金标准,但耗时.
研究的目的:
- 评估微观尿液分析的诊断准确性,以检测儿童尿样中的细菌尿.
- 将微观发现 (细菌和白细胞) 与定量细菌培养进行比较.
- 确定微观尿分析作为小儿脏诊所环境中尿液培养的预选择方法的实用性.
主要方法:
- 分析了脏诊所儿童的新鲜,未离心的尿样.
- 对白细胞和细菌进行了显微镜检查.
- 结果与定量细菌培养 (殖民地计数) 相比较.
主要成果:
- 在51个受感染的标本 (≥10^5 CFU/ml) 中,12%缺乏微观细菌,而43%的白细胞<10/mm3.
- 在186个未感染的标本中,17%显示微观细菌,15%显示白细胞过多.
- 细菌和白细胞的显微镜显示了培养结果的高预测价值.
结论:
- 单纯的白细胞计数是诊断儿童尿路感染的不可靠方法.
- 细菌和白细胞的显微镜检查是一种简单,快速和有效的方法,可以预先选择尿样进行培养.
- 这种方法非常适合临床环境,如医院病房和全科医院,但不适合人口查.
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