Screen for TB with confidence using QFT-PlusQuantiFERON-TB Gold Plus (QFT-Plus) is a simple blood test that accurately identifies people infected with M. tuberculosis (MTB), the causative agent of TB (tuberculosis). QFT-Plus is a modern alternative to the 110-year-old tuberculin skin test (TST).
The QFT-Plus assayThe QFT-Plus assay is an in-vitro diagnostic laboratory test that aids in the indirect detection of infection with MTB. It uses human whole blood, with patented assay technology based on the measurement of Interferon-gamma (IFN-γ) secreted from stimulated T-cells previously exposed to MTB. It is a straightforward laboratory test that involves the following steps:
QuantiFERON TB testing workflow options