Podcast
Questions and Answers
Why do mycobacteria leave scars in the lungs even after the body clears the infection?
Why do mycobacteria leave scars in the lungs even after the body clears the infection?
- They are spore-forming bacteria
- They replicate rapidly in the lungs
- They have a high lipid content in the cell wall (correct)
- They are easily cleared by the immune system
Which type of ventilation system is recommended when working with mycobacteria in a lab?
Which type of ventilation system is recommended when working with mycobacteria in a lab?
- Negative air pressure ventilation (correct)
- Positive air pressure ventilation
- No ventilation system required
- Recirculating ventilation
What characteristic of mycobacteria makes them difficult to stain using the Gram stain technique?
What characteristic of mycobacteria makes them difficult to stain using the Gram stain technique?
- High motility
- Presence of interfering cell wall lipids (correct)
- Spore-forming ability
- Low lipid content in the cell wall
Which type of safety cabinet is recommended for working with mycobacteria in a lab?
Which type of safety cabinet is recommended for working with mycobacteria in a lab?
What is the recommended biosafety level (BSL) when processing specimens that may contain mycobacteria?
What is the recommended biosafety level (BSL) when processing specimens that may contain mycobacteria?
What distinguishes Mycobacterium tuberculosis complex from nontuberculous mycobacteria (NTM)?
What distinguishes Mycobacterium tuberculosis complex from nontuberculous mycobacteria (NTM)?
What is the primary vaccine available for tuberculosis?
What is the primary vaccine available for tuberculosis?
Why do mycobacteria gram stain poorly?
Why do mycobacteria gram stain poorly?
What is the standard time for holding mycobacterial cultures before considering them negative?
What is the standard time for holding mycobacterial cultures before considering them negative?
Which characteristic describes mycobacteria's growth requirements?
Which characteristic describes mycobacteria's growth requirements?
What is the recommended biosafety level for working with cultured mycobacteria organisms?
What is the recommended biosafety level for working with cultured mycobacteria organisms?
Which statement best describes the safety measures required when processing specimens that may contain mycobacteria?
Which statement best describes the safety measures required when processing specimens that may contain mycobacteria?
