Chest Clinic

Tuberculosis Testing


The City of Port Arthur Health Department Chest Clinic now offers a new test called the T-Spot.

How can you be screened for TB?

There are 2 types of tests screen for TB infection:
  • The tuberculin skin test (TST or PPD): The tuberculin skin test is a new blood test that was approved by the FDA in 2008.
  • Blood tests such as the T-SPOT.TB test. This new test is particularly important for those who have had the TB vaccination, also known as the BCG vaccination, or those who are immunocompromised.
Blood testing is offered for adults, and in special circumstances for children.

TST or PPD is read in 48-72 hours from the date it was administered.

T-SPOT report will return to our office within 4 days. If you have any questions or concerns call the numbers listed. For more information visit T-SPOT.TB, or the Centers for Disease Control and Prevention (CDC).
End TB