CHROMagar™ Orientation - 5000 ml

Description

Chromogenic medium for the isolation and differentiation of urinary tract pathogens.

The product is composed of a single powder base.

MEDIUM PERFORMANCE:
1. Isolation of a variety of microorganisms: the major target of this medium is the detection of urinary tract pathogens but CHROMagar™ Orientation has a broader application when supplemented with various antibiotics in detecting increasingly important nosocomial and multi-drug resistant microorganisms (See CHROMagar™ ESBL, CHROMagar™ KPC supplements).
2. It presents an instant palette of colours to obtain a large spectrum of differentiation of species. CHROMagar™ Orientation has several advantages over traditional media:
- allows in most cases full differentiation of the pathogens
- allows for reliable detection semi quantitative and presumptive identification of urinary tract pathogens
- easier recognition of mixed growth
- provides higher detection rates
3. High detection of minor populations: the proper use of CHROMagar™ Orientation will correctly pinpoint the presence of a minor population and will help to establish the right diagnosis and therapy.
4.Save time and reduce workload thanks to a high specificity: The most common UTI pathogen is E. coli, found in 40-70 % of infections. CHROMagar™ Orientation has a specificity of 99,3 %* for E. coli, rendering the species confirmatory test largely unnecessary.
* Merlino, J. et al. 1996. Evaluation of CHROMagar Orientation for Differentiation and Presumptive Identification of Gram-Negative Bacilli and Enterococcus Species, J.C.M. 34: 1788-1793.
One plate of CHROMagar™ Orientation will give the same information as the combination of the 3 classical plates used for UTI analysis (blood agar, CLED and MacConkey agar). Moreover since it is easy to differentiate mixed flora on CHROMagar™ Orientation, antimicrobial susceptibility tests can be performed directly from primary isolates without the need of subcultures.
* Samra, Z. et al. 1998. Evaluation of use of a new chromogenic agar in detection of urinary tract pathogens, J.C.M. 36: 990-994.

TYPICAL APPEARANCE OF MICROORGANISMS:
E. coli → dark pink to reddish
Enterococcus → turquoise blue
Klebsiella, Enterobacter, Citrobacter → metallic blue
Proteus → brown halo
Pseudomonas → cream, translucent
S. aureus → golden, opaque, small
S. saprophyticus → pink, opaque, small

Urine analysis is the most common clinical microbial test. For instance, in France in 2007, out of 10 million bacteriology tests carried out, 6 million (60 %) were urine analyses. Thus, any workload reduction related to this analysis will dramatically improve the effciency of the laboratory.

Also available in 25 L (RT413-25). Bulk on request.