QuantiFERON Test

Useful information about the QuantiFERON-TB Test


If you need a QuantiFERON Test in the US and don't have anywhere to go, we would recommend checking out Accesa Labs.

What is the QuantiFERON Test?

The QuantiFERON test is a type of blood test that is used to diagnose tuberculosis (primarily latent, or inactive tuberculosis). It was approved by the FDA in 2001 to help detect latent Mycobacterium tuberculosis infections.

How does the QuantiFERON test work?

QuantiFERON Gold is a type of Interferon-Gamma Release Assay, or IGRA, test. This test helps check for the presence of a response to Mycobacterium tuberculosis.

Why do people get the QuantiFERON test?

Many people test positive for tuberculosis on the standard medical skin test. Unfortunately, there is a high rate of false positives, usually because of prior vaccination with the Bacille-Calmette-Guerin (BCG) vaccine administered for tuberculosis protection. Until the advent of blood tests like the QuantiFERON test, people with a positive TB skin test who needed TB clearance would be required to get a chest x-ray (often annually).

What are other advantages to the QuantiFERON test?

The QuantiFERON test only requires a single visit whereas a PPD, also known as a TB skin test, requires 2 visits (placement and read). Results are often available as soon as 24 hours after the blood draw.

What are disadvantages of a QuantiFERON test?

The test requires a blood draw. Also, the blood has to be handled in a special way or else the test has to be repeated. Finally, acceptance of this test is not fully mainstream yet which limits its usefulness in all compliance settings (although this will change over time).

How much does a QuantiFERON test cost?

The cost of the QuantiFERON test ranges widely. Test costs can range from $150 to $500+.

Do I need to prepare in any special way for a QuantiFERON test?

No, and fasting is not required.

Will my insurance cover a QuantiFERON test?

It depends on your insurance. Some insurance plans cover it while other people order QuantiFERON testing online. If you need help, here's one place you can Order A QuantiFeron Test.

This information is subject to change. We provide this information as a service and do not warrant the accuracy of any of this information.