If you are experiencing a medical emergency please dial 911 immediately
Two to three days after getting a tuberculin skin test, the size of any bump at the site is measured. Your risk of having TB is used along with the size of the bump to determine whether the test is:
The test cannot tell if you have a latent (inactive) infection or an active infection that can be spread to others.
Last Revised: April 4, 2013
Author: Healthwise Staff
Medical Review: E. Gregory Thompson, MD - Internal Medicine & R. Steven Tharratt, MD, MPVM, FACP, FCCP - Pulmonology, Critical Care Medicine, Medical Toxicology
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