Per the CDC, a TB skin test requires two visits with a health care provider.
On the first visit, the test is placed and on the second, the health care provider reads the test.
Tuberculin (TB) Skin Testing
Tuberculin (TB) Skin Testing
- The TB skin test is performed by injecting a small amount of fluid (called tuberculin) into the skin on the lower part of the arm.
- A person given the tuberculin skin test must return within 48 to 72 hours to have a trained health care worker look for a reaction on the arm.
- The result depends on the size of the raised, hard area or swelling.
Reading the result of a TB skin test
Positive skin test: This means the person’s body was infected with TB bacteria. Additional tests are needed to determine if the person has latent TB infection or TB disease.
Negative skin test: This means the person’s body did not react to the test, and that latent TB infection or TB disease is not likely.
There is no problem in repeating a TB skin test. If repeated, the additional test should be placed in a different location on the body (e.g., other arm).
The TB skin test is the preferred TB test for children under the age of five.
To learn more about our TB testing procedures or to schedule a service, please contact us at (817) 809-8677 or submit a contact form below!
For questions or to schedule a service,
Please fill out the form below or call us at (817) 809-8677.
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