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For Rapid Isolation and Differentiation of Urinary Tract Pathogens

The major target of this medium is the detection of urinary tract pathogens, but COLOREX Screen has a broader application as a general nutrient agar for the isolation of various microorganisms.

COLOREX Screen can also be used to differentiate various microorganisms in other infected areas; e.g., scars, wounds, etc. In addition, COLOREX Screen is useful when supplemented with various antibiotics in detecting increasingly important nosocomial and multidrug resistant microorganisms.

For InTrays with antibiotic supplementals, please see COLOREX ESBL, COLOREX KPC, and COLOREX Yeast



Product Principle
  • Combine collection, culture, result and microscopic observation in one IVD device.  
  • Highly selective prepared media in a device designed for in-vitro specimen transport and incubation.
  • Rapid presumptive-positive diagnosis without re-plating. InTray can be placed directly on microscope stage
  • Fully enclosed cassette with Tyvek® air filtration prevents contamination and exposure, post-collection.
Simple Convenience
  • InTray is designed for specimen collection and inoculation at point-of-care
  • Saves time, material cost and waste, reducing exposure to collected sample
  • Place directly on the microscope tray for observation through the cassette’s clear anti-fog window
  • Visual chromogenic differentiation
Accurate Detection



Colony Appearance

E. coli


Dark pink to reddish
Enterococcus Turquoise blue
Klebsiella Metallic blue
Enterobacter Metallic blue
Citrobacter Metallic blue
Proteus Brown halo
Pseudomonas Cream, translucent
S. aureus Golden, small, opaque
S. saprophyticus Pink, small, opaque
Time to Result

Incubate at 37°C for 24-72 hours under ambient atmosphere. Note any colony color and morphology


COLOREX Screen expires 12 months from the date of manufacture.

Upon receipt, store COLOREX Screen under refrigeration (2-8°C). Medium can be kept for one day at ambient temperature. Avoid freezing or prolonged storage at temperatures above 40°C. Do not open until ready to use. Do not use if the medium shows signs of deterioration or contamination.


Shelf-life and DurabilityKey FeaturesExperience a reduction in:

  • Manufactured for extended 12-month shelf life. 
  • Durable and stackable for incubation
  • No re-plate or wet mount 
  • Once inoculated, no other culture preparation is required... saving time and money. 
  • Designed for specimen collection/inoculation at point-of-care, InTray is a fully enclosed system for transport, incubation, result and microscopic observation. 
  • The sealed prepared media device is selectively formulated for accurate detection and identification of pathogens and non-pathogens
  • Visual chromogenic differentiation and/or selective production of distinctive colony growth with typical identifiable morphology 
  • Fully enclosed cassette with air filtration system
  • Nutritive culture colony growth medium, formulated for selectivity and specificity 
  • Anaerobic or aerobic system available (on select products)
  • Time-to-result
  • Cost of laboratory materials 
  • Medical waste
  • Risk of exposure or contamination







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