Blood culture contamination quality improvement project

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The standard benchmark for blood culture contamination is 3%. Our aim with the quality improvement project was to reduce the contamination rate at our children’s hospital from a mean of 2.85% to <1.5% in 2 years” El Feghaly et al (2018).

Abstract:

BACKGROUND AND OBJECTIVE: Blood culture contamination is a safety and quality concern in children’s hospitals; it leads to increased unnecessary testing, admissions, antibiotic exposure, and cost. The standard benchmark for blood culture contamination is 3%. Our aim with the quality improvement project was to reduce the contamination rate at our children’s hospital from a mean of 2.85% to <1.5% in 2 years. METHODS: After initial unit-specific efforts, we formed a multidisciplinary team, created a process map and a cause-and-effect analysis, sent out surveys to nurses, and created observation sheets used to identify problem areas and record the most common deviations during the collection process. We also standardized the blood culture collection protocol and reemphasized nurse education in person and with online modules. During our project, we noted that nurses were collecting 1 to 3 mL of blood on all children regardless of weight. We developed optimal weight-based blood volumes and, after educating ordering providers, we updated our electronic medical record to reflect appropriate volumes in the order. RESULTS: Despite a steady increase in the number of blood cultures collected at our children’s hospital, we were able to decrease the average contamination rate from 2.85% to 1.54%, saving the hospital an estimated average of $49 998 per month. CONCLUSIONS: By standardizing blood culture collection methods, optimizing blood volume, creating checklists, and reinforcing nurse education, we were able to develop a best practice for pediatric blood culture collection and reduce blood culture contamination to a sustainable low rate at our children’s hospital.

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Reference:

El Feghaly, R.E., Chatterjee, J., Dowdy, K., Stempak, L.M., Morgan, S., Needham, W., Prystupa, K. and Kennedy, M. (2018) A Quality Improvement Initiative: Reducing Blood Culture Contamination in a Children’s Hospital. Pediatrics. 142(4), p.e20180244.

DOI: 10.1542/peds.2018-0244

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