HCW Screening

Use QuantiFERON-TB Gold for your healthcare worker TB screening program and improve accuracy, efficiency and cost-effectiveness.

Healthcare workers are at 2- to 5-fold increased risk of developing latent TB infection compared with the general population.  Even employees with brief patient contact and members of staff without patient care responsibilities may be exposed to TB through droplets from a person with TB disease. Transmission of TB bacteria in healthcare settings to and between patients and healthcare workers has been reported in virtually every country of the world, regardless of how much TB exists in the local community.

QuantiFERON-TB Gold (QFT®) is a blood test that can help diagnose TB infection. QFT is a major scientific advance over the 100-year-old skin test (Mantoux or tuberculin skin test [TST]), giving greater accuracy and cost-effectiveness, and a more reliable result in a single visit. 

improve your TB screening by switching to QuantiFERON-TB Gold (QFT)

In what situations should QFT be used?

QFT can be used in all situations in which the skin test has been used in the past. QFT can also be used to confirm a positive skin test result. Benefits include:

  • QFT requires only one visit
  • Highly accurate
  • QFT is >99% specific
  • QFT is unaffected by BCG vaccination
  • You  may combine blood tests for extra convenience

What does QFT involve?

QFT is simple and only involves collection of a blood sample, which is then sent to the laboratory for analysis.

How are QFT results interpreted?

QFT is one of  many possible tools used to determine whether TB infection is present. In addition to a QFT result,  essential information such as medical history, risk of exposure to TB, and other clinical results should be taken into account. In most circumstances, however:

  • A positive QFT result suggests that TB infection is likely
  • A negative QFT result suggests that TB infection is unlikely
  • An indeterminate result, which is uncommon, may suggest the need for further investigation or repeating the test

Are there any risks with having a QFT test?

No, there are no risks associated with the having the test apart from the slight discomfort of having a blood sample taken.


Test Recipients

pdf about Tuberculosis screening for Healthcare Workers       Ask for QuantiFERON-TB Gold at your next TB screening

Continuing Education

Focus on Healthcare workers:

"Highlights from the 3rd Global Symposium on IGRAs: A moderated discussion with Tuberculosis Experts", a University of California, San Diego CME activity.

Part 1

Part 2

Complementary publications

Request e-prints of:

Pareek et al. Thorax 2012
Eralp et al. BMJ Open 2012


Clinical resources

To place an order or for further information, Contact Us.