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A member asked:
Why is my tb skin test site still irritated after 72 hours?
A doctor has provided 1 answer
PPD: The result of PPD testing is read within 48 to 72 hours. If the test turned positive, the bump can persist for many days.
Answered 6/10/2014
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Related Questions
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I got a TB skin test a week ago and I still have a red bump on my arm. They told me it was negative. I was wondering if this is normal?
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I just had a TB skin test done last week and i had it read and they said it was negative however i still have a little red bump how do I get rid of it?
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