CLSI

Explain the scope, role, and authority of CLSI in antimicrobial susceptibility testing.

Explain the scope, role, and authority of EUCAST in antimicrobial susceptibility testing.

Identify the principal official AST documents published by CLSI and EUCAST and state the purpose of each.

Distinguish clinical breakpoints from CLSI epidemiological cutoff values and EUCAST epidemiological cutoff values.

Compare the antimicrobial susceptibility categories and reporting terminology used by CLSI and EUCAST.

Explain how standardized AST methods and interpretive criteria support reliable results, patient care, and antimicrobial-resistance surveillance.

Construct a concise comparison of CLSI and EUCAST in terms of governance, geographical adoption, document access, revision practices, and breakpoint-setting approaches.

Explain why a laboratory must not mix test methods, quality-control criteria, breakpoints, or interpretive rules from incompatible systems or versions.

Verify that an official CLSI or EUCAST document is current and applicable by checking its version, scope, organism–agent coverage, tables, notes, and updates.