Tuberculosis Flashcards
1
Q
Name 3 microbiological features of TB?
A
- Myobacterium tuberculosis
- rod shaped bacteria
- acid fast - infecctive to staining
2
Q
How is TB stained?
A
- Zeihl - Neelsen stain
2. TB bacteria bright red against a blue background
3
Q
How is TB spread?
A
Spread by inhaling saliva droplet from infected people
4
Q
What is ‘active TB’?
A
1.Active infection in various areas of the body
5
Q
What is ‘latent TB’?
A
Active infection is controlled and progression is stopped.
6
Q
What is ‘secondary TB’
A
When latent TB reactivates
7
Q
What is ‘miliary TB’
A
After reactivation, when the immune system can no longer control disease and this causes desseminated, severe disease.
8
Q
Name 3 risk factors for TB?
A
- Foreigners
- Immunosupressed / HIV
- Homeless / drug users or alcoholics
