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A member asked:

I got a tb yest yesterday and the site is sore a little pink and a tiny bit swollen i can't go in till tomorrow to see if its posotive im like worried?

A doctor has provided 1 answer
Dr. Gerald Mandell answered

Specializes in Nuclear Medicine

48 hours: Skin tests should be read 48-72 hours after the injection when the size of the induration is maximal. Tests read after 72 hours tend to underestimate the size of the induration.

Answered 8/20/2013

4.9k views

Thank

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