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A member asked:

I had my tb skin test done yesterday and now i'm looking at my arm and the skin is flat and red. what do i do, what would you recommend?

A doctor has provided 1 answer

TB test: Wait and try to not worry. The TB test can only be interpreted between 48 to 72 hours after it is placed, and it must be raised and firm to be a positive reaction. The diameter at which it is considered positive can vary from between 5 to 15 millimetres depending on various factors.

Answered 1/15/2019

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