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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Red Spot Found After The Tab Test , What Is The Remedy ?

8 months ago I had a tab test done because I am a deputy and work inside a jail! There was no effect at all on my skin! I had another done yesterday and I have a red spot were it was injected which didn t happen last time! Could this still be a negative result? There is no bump just redness!
Thu, 26 Dec 2013
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Dermatologist,  's  Response
Hi,

I can understand your concern for the tab testing and its different results. YOu should know that it is a screening test and is used to screen certain people who are at high risk for TB exposure.

Positive results mean that a person is likely to have been exposed to TB. They may be due to a latent or active TB infection, or occasionally due to a false positive.

Negative results for either test may mean that a person has not been exposed to TB, that the person is not infected with tuberculosis, that their immune system has not responded to the antigen in the test, or that it is too early to detect exposure.

Hope this information relax you.

Take care.
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Red Spot Found After The Tab Test , What Is The Remedy ?

Hi, I can understand your concern for the tab testing and its different results. YOu should know that it is a screening test and is used to screen certain people who are at high risk for TB exposure. Positive results mean that a person is likely to have been exposed to TB. They may be due to a latent or active TB infection, or occasionally due to a false positive. Negative results for either test may mean that a person has not been exposed to TB, that the person is not infected with tuberculosis, that their immune system has not responded to the antigen in the test, or that it is too early to detect exposure. Hope this information relax you. Take care.