A member asked:

I recently got a tb shot friday . now i have a bump on my arm . how do i know if it positive or now.

A doctor has provided 1 answer

Measure it: A TB skin test should be read within 48 hours of being placed under the skin. If you have a visible bump, get it checked by a health care professional.

Answered 9/28/2016

4.1k views

Thank

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