SAFENAI Group

Antimicrobial Susceptibility Testing (AST) is a laboratory procedure used to determine how effectively an antimicrobial agent (such as an antibiotic, antifungal, or antibacterial drug) inhibits or kills a microorganism. AST helps healthcare providers choose the most appropriate treatment for bacterial and some fungal infections while supporting efforts to reduce antimicrobial resistance.

AST is routinely performed in clinical microbiology laboratories after a microorganism has been isolated from a patient sample.