Novel method for detecting micro-organisms in blood cultures. Issue 11 (November 1986)

• Record Type: Journal Article
• Authors: Sawhney, D; Hinder, S; Swaine, D; Bridson, E Y
• Is Part Of: Journal of clinical pathology. Volume 39:Issue 11(1986)
• Page Start: 1259
• Page End: 1263
• Publication Date: 1986-11
• Subjects: Pathology -- Periodicals; Pathology, Molecular -- Periodicals; 616.0705
• DOI: 10.1136/jcp.39.11.1259
• Languages: English
• ISSNs: 0021-9746

Abstract

Abstract : A method for detecting the growth of micro-organisms in blood culture by a visual signal is described. The system utilises a single blood culture medium that has been specifically formulated to support growth of aerobic, anaerobic, and microaerophilic micro-organisms. The system is based on the principle that when micro-organisms grow in the medium in a sealed bottle their metabolic products create positive pressure. This positive pressure displaces the infected blood and broth into an upper chamber, which acts as a visual signal of microbial activity. All the test micro-organisms, when inoculated at less than 20 colony forming units into simulated human blood cultures, gave a positive signal.