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Larang, R.S., Repayo, L., Espiritu-Fuller, M.C. and Chan, T (2015) The Impact of Intensive Education on Decreasing the Blood Contamination Rate. American Journal of Infection Control. 43(6), p.S50.


Blood cultures (BC) are considered the “gold standard” for diagnosis of an infection. A BC growing a “contaminant organism” is considered a false positive BC. This impacts not only on patient care – errors in clinical interpretation, unnecessary antibiotic use, superinfections, emergence of resistant strains but also on the length of stay, incidence of catheter-line associated blood stream infections, pharmacy, laboratory costs, and other diagnostic tests. The standard of American Society of Microbiology for Blood Culture Contamination (BCC) rate is 3%.

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