Thus, growth of microbes in a blood culture can signal the presence of a true bloodstream infection or skin commensal contaminant introduced during the collection of blood. Monitoring blood culture contamination rates is a critical process for microbiology laboratories. Contamination of blood cultures ...
enrichment cultureone grown on a medium, usually liquid, that has been supplemented to encourage the growth of a given type of organism. hanging-drop culturea culture in which the material to be cultivated is inoculated into a drop of fluid attached to a coverglass inverted over a hollow slid...
In addition, the identification of organisms isolated from blood cultures is reported to the physician, regardless of whether the organism isolated is a contaminant or the infectious agent. Consequently, reporting positive blood cultures that reflect contamination in certain cases may trigger some ...
Overall analysis of organism-antibiotic combinations also revealed significant levels of very major errors for oxacillin (4.2%) and ampicillin (4.5%). These findings indicate that reliable ID and AST results of isolates from the VITAL blood culture system can be obtained using rapid technologies. P...
An organism that was considered a contaminant was isolated from an additional 20 culture bottles (3.6%). The cost of laboratory workup of the 710 culture sets was $36,050. Isolation of streptococci led to a change from empirical treatment with cefazolin to penicillin therapy for 8 patients. ...
commoncontaminantwasCoagulase—negativestaphylococcus(76.83%).Theaverageculturaltimeduringwhich contaminatedsamplesbecamepositivewaslongerthanthatfortruepathogensamples(42.0hoursvs.13. 9hours, 0.0411. Conclusion Usingastrictbloodcollectionprocedurecansignificantlyreducebloodculturecontaminationrate. ...
Infection and Drug Resistance Dovepress open access to scientific and medical research Open Access Full Text Article ORIGINAL RESEARCH Effects of Blood Culture Aerobic/Anaerobic Bottle Collection Patterns from Both Sides of the Body on Positive Blood Culture Rate and Time-to-Positivity Hainan Wen1,*,...
Matrix-assisted laser desorption ionization time of ight (MALDI- TOF) decreases time to organism identi cation and when combined with antimicrobial stewardship interventions, has demonstrated improved clinical and nancial out- comes. The purpose of this study was to evaluate the impact of MALDI-TOF ...
Blood culture surveillance will be used for assessing the public health effectiveness of pneumococcal conjugate vaccines in Africa. Between 2003 and 2006 we assessed blood culture outcome and performance in adult patients in the central public hospital in Blantyre, Malawi, before and after the introduct...
pettenkoferi bacteremia in our hospitalized patients, its clinical and laboratory characteristics, as well as to determine if the S.pettenkoferi bacteremia episode represented a true case of bacteremia or if it was regarded as a skin contaminant....