Pathlab uses the European Committee on Antimicrobial Susceptibility Testing (EUCAST) system for testing and reporting antimicrobial susceptibilities. Until now EUCAST has used the following categories for the reporting of antimicrobial susceptibilities, “Susceptible”, “Intermediate”, and “Resistant”.
In 2019, EUCAST introduced changes that redefined the categories used for interpreting and reporting antimicrobial agents. (The full background and details about the changes are available on the EUCAST website.)
The new categories that antimicrobials will be reported under and their definitions are as follows:
The new definitions reflect the need for correct exposure of the microorganism being treated. The dosing strategies relevant to the EUCAST breakpoints are available on the EUCAST website in the “Clinical Breakpoints – bacteria” excel file under the “Dosages” tab, (far right end tab), see EUCAST clinical breakpoints.
If you have questions or would like to discuss the changes further, please contact us.