Administrative and Safety Practices in Medical Microbiology
Scope of the domain
Questions here test whether you know the regulatory and biosafety framework that governs a clinical microbiology laboratory, not just the bench technique. Know the difference between CLIA '88 (federal quality standards for testing, personnel qualifications, and proficiency testing) and CAP accreditation (often more stringent, peer-based). Understand biosafety levels: BSL-2 for routine clinical specimens, BSL-3 for Mycobacterium tuberculosis propagation and Brucella, BSL-4 for agents such as Ebola and Nipah. Know the Bloodborne Pathogens Standard and the TB respiratory protection requirements.
Traps to expect
- Confusing biosafety level with agent risk group; they are related but not identical.
- Assuming all mycobacteria require BSL-3 - only M. tuberculosis complex propagation does; direct specimen processing can be BSL-2 with precautions.
- Mixing up sentinel laboratory roles (rule-out and refer) versus Laboratory Response Network reference labs.
- Overlooking that packaging and shipping of infectious substances falls under DOT/IATA (UN2814 Category A, UN3373 Category B).
- Forgetting that select agents are governed by the Federal Select Agent Program, not CLIA.
Worked example / rule of thumb
A sputum culture grows an acid-fast bacillus. A question asks at what biosafety level the isolate should be manipulated. Rule of thumb: any manipulation that could generate aerosols from a suspected M. tuberculosis isolate requires BSL-3. Direct smear preparation from the original specimen can be performed at BSL-2 with a biological safety cabinet and appropriate PPE. When in doubt, choose the higher level for propagation and aerosol-generating procedures.