TB Control and Testing Flashcards
1
Q
What is the definition of latent TB?
A
A TB infection that doesn’t develop active disease but is instead harbored in lung tissue.
2
Q
What are increased TB rates attributed to?
A
HIV, immigrants, nosocomial outbreaks, drug resistant TB, decline of public health infrastructure
3
Q
How does TB survive without active infection?
A
Infected macrophages die but the pathogen is released extracellularly and is taken up by another macrophage that becomes a tubercle with intact center capable of reactivation.
4
Q
Who is considered a high risk population?
A
Immigrants from TB prevalent regions, HIV, homeless, IV drug users, certain medical conditions (diabetes, dialysis) and healthcare workers.
5
Q
What is the traditional treatment for latent TB?
A
Isoniazid for 9 months OR Rifampin for 4 months OR Combined for 3 months
