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Updated: Aug 29, 2026
Preparation of a Blood Culture Pellet for Rapid Bacterial Identification and Antibiotic Susceptibility Testing
Published on: October 15, 2014
[Coagulase-negative Staphylococcus sp. in blood cultures from infants less than 60 days old: infection versus
1Bióloga da Unidade de Microbiologia do Hospital de Clínicas de Porto Alegre. suzi@dpx1.hcpa.ufrgs.br
Objective:
The aim of this study was to determine the prevalence of infection versus the prevalence of contamination in infants less than 60 days old who had blood cultures positive for CoNS.
Material And Methods:
Between February and June - 1993, a number of 45 blood cultures positive for CoNS from 41 patients were studied. Patients were classified in three groups according to their clinical and laboratorial data: I- infected patients, II- non-infected patients and III- dubious.
Results:
The results showed that 11 patients (26.8%) were included in group I, 25 (61%) in group II (contaminated blood cultures), and 5 (12.2%) in group III.
Conclusion:
It is suggested that more than one blood culture should be requested before treatment with antimicrobials, avoiding unnecessary administration of antibiotics.
