Effect of a training programme on blood culture contamination rate in critical care
| Autor: | R. Jareño-Collado, M.T. Pulido-Martos, J. Cacho-Calvo, A. Martín-Pellicer, L. Panadero-del Olmo, Fernando Frutos-Vivar, S. López-Román, M.M. Sánchez-Sánchez, S. García-González, S. Arias-Rivera, P. Fraile-Gamo, E.I. Sánchez-Muñoz, P. Vadillo-Obesso |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
medicine.medical_specialty medicine.diagnostic_test business.industry 030106 microbiology Chlorhexidine Contamination Intensive care unit Asepsis Confidence interval law.invention 03 medical and health sciences Surgical mask Interquartile range law Internal medicine medicine Blood culture business medicine.drug |
| Zdroj: | Enfermería Intensiva (English ed.). 29:121-127 |
| ISSN: | 2529-9840 |
| Popis: | Blood culture contamination can occur from extraction to processing; its rate should not exceed 3%. Objective To evaluate the impact of a training programme on the rate of contaminated blood cultures after the implementation of sample extraction recommendations based on the best evidence. Method Prospective before-after study in a polyvalent intensive care unit with 18 beds. Two phases were established (January–June 2012, October 2012–October 2015) with a training period between them. Main recommendations: sterile technique, surgical mask, double skin disinfection (70° alcohol and 2% alcoholic chlorhexidine), 70° alcohol disinfection of culture flasks and injection of samples without changing needles. Including all blood cultures of patients with extraction request. Variables: demographic, severity, pathology, reason for admission, stay and results of blood cultures (negative, positive and contaminated). Basic descriptive statistics: mean (standard deviation), median (interquartile range) and percentage (95% confidence interval). Calculated contamination rates per 100 blood cultures extracted. Bivariate analysis between periods. Results Four hundred and eight patients were included. Eight hundred and forty-one blood cultures were taken, 33 of which were contaminated. In the demographic variables, severity, diagnosis and stay of patients with contaminated samples, no differences were observed from those with uncontaminated samples. Pre-training vs post-training contamination rates: 14 vs 5.6 per 100 blood cultures extracted (p = .00003). Conclusion An evidence-based training programme reduced the contamination of samples. It is necessary to continue working on the planning of activities and care to improve the detection of pollutants and prevent contamination of samples. |
| Databáze: | OpenAIRE |
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