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A member asked:
How is a tuberculosis skin test done now?
A doctor has provided 1 answer
Same as before: Skin tests haven't changed: a small amount of liquid (ppd, or purified protein derivative) is injected under the skin on your forearm. The difference is that there is now a blood test (interferon-gamma release assays, such as quantiferon gold) that can be used in place of the skin test.
Answered 9/28/2016
5.7k views
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