Predict the result of a tuberculin skin test (+ or -) for each of the following:
- A person infected with TB 1 week ago (primary infection)
- A person infected with TB 6 weeks ago (primary infection)
- A person infected with TB 6 months ago (latent TB)
- A person infected with TB 40 years ago (latent TB)
- A person infected with active TB
- A nurse who works with TB patients
- A person who has had a TB vaccine
- A person with AIDS and active TB
For a person recently exposed to TB pathogen, it takes 6-8 weeks for Mycobacterium to demonstrate result against tuberculin test.
Latent TB also show positive results for tuberculin test
Health care professionals have latent TB showing positive of tuberculin test
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