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Clear Diagnosis of Urinary Tract Infections

Thermo Scientific Clear Chromogenic Urinary Tract Infection (UTI) Medium

Thermo Scientific has launched a new chromogenic medium that is designed to enhance the presumptive identification of the main organisms responsible for urinary tract infections. Thermo Scientific Clear Chromogenic Urinary Tract Infection (UTI) Medium uses colour to differentiate between enterococci, Escherichia coli, coliforms, Staphylococcus aureus and organisms with tryptophan deaminase activity (TDA), such as Proteus, Morganella and Providencia spp. The background is clear, allowing easy tie-up between sample and identification on multiple-sample plates.

Photograph: Thermo Scientific Clear Chromogenic Urinary Tract Infection (UTI) Medium uses colour to differentiate between organisms. The background is clear, allowing easy tie-up between sample and identification on multiple-sample plates.

By providing this specific and easily-visualised differentiation on a single culture plate, Thermo Scientific Clear UTI Medium reduces the need for sub-culturing and further lengthy identification procedures, even when more than one species is present in the sample.

Thermo Scientific Clear Chromogenic UTI Medium contains two specific chromogen substrates. One is cleaved by b-glucosidase in enterococci, resulting in blue colonies, and the other is cleaved by b-galactosidase in E. coli, resulting in pink colonies. Since coliforms have the ability to cleave both chromogens, they produce purple colonies. In addition, tryptophan in the medium allows for the detection of TDA activity, causing such colonies to be brown in colour, whilst Staphylococcus aureus colonies retain their typical appearance.

To find out more about Thermo Scientific Clear Chromogenic UTI Medium and other diagnostic culture media:
Telephone: +44 (0) 1256 841144
Fax: +44 (0) 1256 329728
Email: leslie.bissell@thermofisher.com
or visit the Thermo Scientific website at www.oxoid.com.

NOTE: This item is from our 'historic' database and may contain information which is not up to date.

Source : Thermo Scientific. View Company Information

Posted on August 4, 2003