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Improving Therapeutic Decisions. ETEST is a well-established method for antimicrobial susceptibility testing in microbiology laboratories around the world. ETEST consists of a predefined gradient of antibiotic concentrations on a plastic strip and is used to determine the Minimum Inhibitory Concentration (MIC) of antibiotics, antifungal agents and antimycobacterial agents.



Quantitative MIC data is a prerequisite for the management of critical infections, including sepsis, especially among critical care patients. ETEST for antimicrobial resistance testing is particularly valuable in such situations, when on-scale MICs are needed for treatment decisions.

ETEST is recognized as a cost-effective tool for generating MICs across 15 dilutions. It can also be used in a macromethod format to optimize resistance detection. More than 100 antibiotics are now available in the product range for testing of aerobic bacteria and fastidious organisms such as Pneumococci, Haemophilus, H. pylori, Meningococci, Gonococci, anaerobes, fungi and mycobacteria.


  • Perform antibiotic susceptibility testing (AST)
  • Provide MICs for slow-growing and fastidious organisms that have unique growth requirements and cannot be tested by automated methods
  • Test robust aerobes, anaerobes, pneumococci, menigococci and fastidious organisms such as the HACEK group, Bordetella and Francisella
  • Detect and confirm phenotypic resistance
  • Confirm or detect low-level or new resistance mechanisms 
  • Enhance antimicrobial stewardship programs
  • Validate susceptibility results
  • Guide antibiotic selection and dosing
  • Improve patient outcomes and lower healthcare-associated expenses
  • Decrease hospital length of stay and associated costs of prolonged hospitalization

For an up-to-date list of available ETEST products, please refer to the Specs tab.