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Thermo Scientific™ Oxoid™ Colistin CT Antimicrobial Susceptibility Discs
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Specifications:
| Application | Antimicrobial Susceptibility and Resistance Testing (AST) |
| Storage Temperature | -20°C |
| Product Type | Antibiotic Disc |
| Product Brand | Thermo Fisher Scientific™, Oxoid |
| Product Grade | Microbiology grade |
The Thermo Scientific™ Oxoid™ Colistin Antimicrobial Susceptibility Discs provide a reliable, manual method for determining bacterial susceptibility to colistin using the standard agar diffusion technique. These high-quality, easy-to-use discs are suitable for clinical laboratories conducting routine antimicrobial susceptibility testing (AST), especially in cases involving multidrug-resistant Gram-negative organisms.
Colistin (polymyxin E) is a last-resort polymyxin-class antibiotic used to treat infections caused by carbapenem-resistant organisms, including Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacteriaceae. Due to its clinical importance in treating multidrug-resistant infections, reliable colistin susceptibility testing is essential.
Key Features
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Available in Multiple Concentrations:
Choose from 10 µg, 25 µg, or 50 µg discs for clinical flexibility based on guidelines or organism resistance profiles. -
Precise Zone Interpretation:
Enables clear visualization of zone diameters to determine organism resistance, intermediate response, or susceptibility. -
Enhanced Stability & Shelf Life:
Discs are packaged in sealed cartridges with built-in desiccant to maintain a moisture content below 2% for long-term stability. -
User-Friendly Design:
Spring-loaded cartridges ensure shatterproof dispensing, easy handling, and minimal user error. -
Visual Indicators:
Facilitates detection of contamination, resistant mutants, beta-lactamase activity, and antimicrobial synergy or antagonism. -
Standards Compliance:
Fully compliant with CLSI and DIN AST guidelines for colistin testing.
Applications
- Clinical microbiology for multidrug-resistant Gram-negative infections
- Antimicrobial stewardship programs
- Routine surveillance of colistin resistance in nosocomial pathogens
- Validation of new therapeutic protocols involving polymyxin antibiotics
- Use in public health labs, veterinary microbiology, and pharmaceutical QC testing
Product Variants & Ordering Information
| Catalog Number | Concentration | Antibiotic Code | Pack Size | Packaging |
|---|---|---|---|---|
| CT0017B | 10 µg | CT | 5 cartridges | 50 discs/cartridge |
| CT0065B | 25 µg | CT | 5 cartridges | 50 discs/cartridge |
| CT0664B | 50 µg | CT | 5 cartridges | 50 discs/cartridge |
Note: Each cartridge is sealed with a desiccant to preserve disc integrity.
Specifications
| Attribute | Details |
|---|---|
| Antibiotic | Colistin (Polymyxin E) |
| Antibiotic Code | CT |
| Available Concentrations | 10 µg, 25 µg, 50 µg |
| Format | Disc diffusion (manual AST) |
| Guidelines | CLSI, DIN |
| Disc Count | 50 discs/cartridge, 5 cartridges per pack |
| Intended Use | For In Vitro Diagnostic Use |
| Compatibility | Manual AST systems using Mueller-Hinton agar |
For professional use only. To be used with standardized agar-grown pure cultures. Not a companion diagnostic. Always refer to current CLSI/EUCAST guidelines for interpretation and breakpoint definitions.
- Drug Concentration: 10 µg 50 µg