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首页> 外文期刊>Infection control and hospital epidemiology >Obtaining blood cultures by venipuncture versus from central lines: Impact on blood culture contamination rates and potential effect on central line-associated bloodstream infection reporting
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Obtaining blood cultures by venipuncture versus from central lines: Impact on blood culture contamination rates and potential effect on central line-associated bloodstream infection reporting

机译：通过静脉穿刺与从中心线获取血液培养物：对血液培养物污染率的影响以及对与中心线相关的血液感染报告的潜在影响

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objective. Reduce the frequency of contaminated blood cultures that meet National Healthcare Safety Network definitions for a central line-associated bloodstream infection (CLABSI). design. An observational study. setting. A 500-bed university-affiliated hospital. methods. A new blood culture policy discouraged drawing blood samples from central lines. Phlebotomists were reeducated regarding aseptic technique when obtaining blood samples by venipuncture. The intravenous therapy team was taught how to draw blood samples by venipuncture and served as a backup when phlebotomists were unable to obtain blood samples. A 2-nurse protocol and a special supply kit for obtaining blood samples from catheters were developed. Rates of blood culture contamination were monitored by the microbiology laboratory. results. The proportion of blood samples obtained for culture from central lines decreased from 10.9% during January-June 2010 to 0.4% during July-December 2012 (p<.001). The proportion of blood cultures that were contaminated decreased from 84 (1.6%) P of 5,274 during January-June 2010 to 21 (0.5%) of 4,245 during January-June 2012 (P <.001). Based on estimated excess hospital costs of $3,000 per contaminated blood culture, the reduction in blood culture contaminants yielded an estimated annualized savings of $378,000 in 2012 when compared to 2010. In mid-2010, 3 (30%) of 10 reported CLABSIs were suspected to represent blood culture contamination compared with none of 6 CLABSIs reported from mid-November 2010 through June 2012 (P=0.25). conclusions. Multiple interventions resulted in a reduction in blood culture contamination rates and substantial cost savings to the hospital, and they may have reduced the number of reportable CLABSIs.
机译：目的。减少符合国家医疗保健安全网络关于中央线相关性血液感染（CLABSI）定义的受污染血培养物的频率。设计。一项观察性研究。设置。拥有500张床的大学附属医院。方法。一项新的血液文化政策不鼓励从中心线抽取血液样本。通过静脉穿刺术获取血液样本时，对抽血医师进行了无菌技术培训。静脉治疗团队被教导如何通过静脉穿刺抽取血液样本，并在抽血医生无法获得血液样本时作为备用。开发了一种2疗程规程和专用的试剂盒，用于从导管中获取血液样本。血液培养物污染的速率由微生物实验室监测。结果。从中心线获得的用于培养的血样比例从2010年1月至6月的10.9％降至2012年7月至12月的0.4％（p <.001）。被污染的血液培养物的比例从2010年1月至6月的5,274的84（1.6％）P降至2012年1月至6月的4,245的21（0.5％）（P <.001）。根据估计的每次污染的血液培养物3,000美元的医院额外成本，与2010年相比，2012年血液培养物污染物的减少估计每年可节省378,000美元。2010年中，怀疑有10个报告的CLABSI中有3个（30％）与2010年11月中旬至2012年6月期间报告的6个CLABSI中没有一个相比，它们代表的是血液培养物污染（P = 0.25）。结论。多种干预措施可减少血液培养物的污染率，并为医院节省大量成本，并且可能减少了可报告的CLABSI数量。

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