Quantiferon Gold TB Test

Tuberculosis (TB) is an airborne disease caused by an infection of the Mycobacterium tuberculosis bacteria.

The QuantiFERON®-TB Gold blood test (QFT-G) is an alternative blood test for use as an aid in diagnosing Mycobacterium tuberculosis infection (both latent tuberculosis infection and active tuberculosis disease). The test is approved by the U.S. Food and Drug Administration (FDA) as an aid for detecting latent Mycobacterium tuberculosis infection.

As a diagnostic test, QFT:

  1. requires phlebotomy
  2. can be accomplished after a single patient visit
  3. assesses responses to multiple antigens simultaneously
  4. does not boost anamnestic immune responses.

Compared to the TB skin test, QFT results are less subject to reader bias and error.

We require each person receiving a TB vaccination, also have a physical at the time of the vaccine.


Any severe, life-threatening injury or illness should immediately report to the nearest hospital emergency room.

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