Whatz chance of getting a false +ve in skin test of tuberculosis if a person is treated prior for TB?

Question

If a person is treated for tuberculosis for a9 month period and then later in few yrs if he/she has a tuberculosis skin test done ,then what are the chances that he/she might get a false positive.
Also, if the x-ray of this person is done later after a few years ,Is is normal to see scarring
What is quantiferon test ? What will be the result of a quantiferon test done on a person prior treated for tuberculosis?

Answer 1

I have TB, and I also went through the nine month treatment of Isoniazid. Although you go through that treatment, it is possible for TB to be come active again. And unfortunately, active or latent, you will always have a positive skin test. Chest x-rays must be done in order to determine if the infection has become active. I think you should talk to your doctor, or to whomever you were referred for treatment. TB is something that has to be reported to the CDC, go to their clinics, and build a relationship with them and ask them to put it in your terms, not their medical jargon. I've never had to go through the rest of it, so I'm not sure, and I'm also an RN, but not specialized in that area, but turn to your healthcare providers, talk to them. There are tests that can be done to determine if your strain of TB was a resistant strain, and there is different medication for that, however it is quite expensive. But get more tests! Talk to your physician! And best of luck!

Answer 2

I had "Valley Fever" (Coccidioidomycosis) when i was 8. I've always tested positive for tuberculosis with the skin test. My work, after a positive test, had me take an x-ray to verify I was free of disease. I worked with children infant to twenty-two.

When I have an x-ray I have to explain to technicians that the scarring is from when I was a child.

A quantiferon test is a test to determine if you have tuberculosis. Since this test is a test that looks at the white blood cells within your blood system. I'd think that it wouldn't give you a false-positive. However I really do not know for sure.

Best of luck and good health to you.

Answer 3

First, M. tuberculosis is a micro organism. no longer an endemic. A mycobacterium, to be particular. 2d, it infrequently infects wounds. Transmission very virtually consistently occurs for the period of the lungs, and it ought to unfold for the period of the blood in immunocompromised people, even in spite of the shown fact that it does not frequently initiate in the floor. i does not swear it could no longer take place, yet TB desires fairly a lot of oxygen to reproduction, that's why it starts in the lungs. 0.33, an infection demands close touch with an actively contaminated individual. The bacterium that motives TB does not stay long exterior of a service. So except this individual replaced into positioned right into a room for an prolonged volume of time with somebody who replaced into coughing over the open wound, then no, it does not sound like treating a wound is an argument. Why does this individual think of they might have TB besides? Are they coughing? Have that they had a great PPD attempt? in fact, are you particular you do no longer propose tetanus? i'm somewhat at a loss for words.

Answer 4

The QuantiFERON®-TB Gold test (QFT-G) is a whole-blood test for use as an aid in diagnosing Mycobacterium tuberculosis infection, including latent tuberculosis infection (LTBI) and tuberculosis (TB) disease. it works by taking a
blood sample that is mixed with TB antigens . If the person is infected with M. tuberculosis, their white blood cells will release IFN-gamma in response to contact with the TB antigens. The QFT-G results are based on the amount of IFN-gamma that is released in response to the antigens.

Answer 5

You should never take another skin test. If the person had actual TB, it would be normal to see leftover scarring.

Answer 6

It will be positive for life.