BD CLED Agar (Cystine-Lactose-Electrolyte-Deficient Agar) is a differential culture medium for use in isolating and enumerating bacteria from urine. It supports. In the laboratory CLED Medium provides a valuable non-inhibitory diagnostic agar for plate culture of urinary organisms. It is electrolyte deficient to prevent the . CLED AGAR (CYSTINE LACTOSE ELECTROLYTE DEFICIENT). CAT Nº: For the inhibition of Proteus swarming in the cultivation of Gram-positive and.

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Tools What links here Upload file Special pages Page information. Other products used in the isolation of Urinary pathogens:.

Product Description Organisms Ref. Pale green coloured, free-flowing powder Prepared medium: Mix well before pouring. Agra pyogenes and many other fastidious organisms that do not require the presence of blood can grow on this medium.

PP – CLED Agar – E & O Laboratories Ltd

Firm Gel Colour Side 1: The lack of electrolytes inhibits the spreading of Proteus spp. CLED agar cystine—lactose—electrolyte-deficient agar or medium is a valuable non-inhibitory growth medium used in the isolation and differentiation of urinary microbes. They are, therefore, suitable for both general practitioner and hospital work including the screening of ante-natal specimens for symptomless bacteriuria. For full details, the original papers should be consulted. In some countries this may not be legally possible; if so: Unsourced material may be challenged and removed.


Brucella Brucella agar Farrell’s medium. Firm Gel Side 2: Please help improve this article by adding citations to reliable sources. A variant of this technique has been described by Guttman and Naylor 4 who employed media-coated slides. The following pages on the English Wikipedia link to this file pages on other projects are not listed:.

Growth Characteristics on CLED Medium 18 hours incubation Escherichia coli yellow, opaque colonies with a slightly deeper coloured centre about 1. Non-lactose fermenting strains – blue colonies Klebsiella species extremely mucoid colonies varying in colour agaf yellow to whitish-blue Proteus species translucent blue colonies usually smaller than Escherichia coli Salmonella species flat blue colonies Pseudomonas aeruginosa green colonies with typical matt surface and rough periphery Enterococcus faecalis yellow colonies about 0.

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Alphaproteobacteria Brucella Brucella agar Farrell’s medium. Retrieved from ” https: Phenylalanine and Tryptophan are also included as indicators of Tryptophan Deaminase activity producing brown colonies of Proteus spp.

Cystine–lactose–electrolyte-deficient agar

Cystine is also present to benefit those organisms that have a particular Cystine requirement. It is electrolyte deficient to prevent the swarming of Proteus species. Information from its description page agra is shown below. This medium is recommended for urinary bacteriology, supporting the growth of all urinary pathogens and giving good colonial differentiations and clear diagnostic characteristics. Blood agar Vled agar Nutrient agar Plate count agar. These techniques overcome false bacteriological results associated with delay in the transport of the specimens of urine to the laboratory and permit a clinically accurate routine differential viable count.


Recommended for diagnostic urinary bacteriology.

As required by organisms. The medium has been used successfully in the Dip-inoculum Transport Medium technique Mackey and Sandys 1,3. Two chromogens are present in the medium, one allows the detection of enterococci giving rise to blue colonies whilst the second results in purple colonies of E. Bacteria which decarboxylate L-Cystine cause an alkaline reaction and build deep blue colonies [1].

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CM Recommended for diagnostic urinary bacteriology. Quality Control Test Organisms: Non-lactose fermenting strains – blue colonies.