Sestrinska reč (Jan 2017)
Analysis of the frequency of contamination of blood culture
Abstract
Objectives: Blood cultures are the primary and the most sensitive method for diagnosing blood stream infections (bacteriemia, fungemia, and sepsis) and sensitivity to antibiotics. However, contamination may impact on patients care and lead to increased patient stay, additional tests, and inappropriate antibiotic use. Aim: The objective of this study was to calculate the rate of contamination and assess possible associated factors Methods: This study is a quantitative observational retrospective cross selection study. The total study population was calculated based on a review of all of the request sheets for blood cultures submitted to the microbiology laboratory from 1st of September to 31st of December, 2016, at The Institute for health protection of children and youth Vojvodine. Results: The rate of blood culture contamination (falsepositive) amounted to 4.93%. The most common isolated pathogen was Staphylococcus spp. in 29 cases, then Klebseilla pneumonie, Streptococcus viridans and beta-hemolytic streptococcus G. Analysis of the data revealed that the departments with the highest number of cases of contamination of blood culture department of neonatology and intensive care. Conclusion: The rate of blood culture contamination is a required question the quality of most hospitals. The overall rate of blood culture contamination at the Institute for Health Protection of Children and Youth of Vojvodina in Novi Sad, is not within the acceptable international range.
