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A member asked:

If a person had tb as child and underwent treatment for it, could he have a false positive tb skin test as an adult?

4 doctors weighed in across 2 answers

Yes: Once you had a positive PPD test, it will stay positive whole your life. Chest x-ray, what you need to do every few years.

Dr Ferguson and another doctor agreed

Answered 3/8/2015

5.5k views

Thank

Not false +: Usually the TB skin test remains positive for a lifetime but does not reflect active infection necessarily at all.

Answered 1/5/2019

5.5k views

Thank

Related Questions

A member asked:

2 TB skin tests. Bumps measured 15cm. RN stated I possibly have LTBI & ordered QuantiFERON Gold in-tube test. Could anything cause a false positive?

9 doctors weighed in across 2 answers

A member asked:

Could a TB skin test be false positive if the needle was to deep? My arm bled after the test and now that its healing I have a large purple bruise

8 doctors weighed in across 4 answers

A member asked:

Done with 9mos tb treatment. Had xray and its normal. No tb symptoms ever since. Mine is latent tb. How come tb gold test is positive?

A doctor has provided 1 answer

A member asked:

Done with 9mos tb treatment. Had xray & its normal. No tb symptoms ever since. Mine is latent tb. How come tb gold test is positive? Am I still sick?

4 doctors weighed in across 2 answers

A member asked:

I have completed a 9mo. isoniazid treatment for latent TB, and just took a quantiferon gold blood test, which came back positive. Is this normal?

3 doctors weighed in across 2 answers

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