QuantiFERON-TB Gold Plus, 1 Tube

QuantiFERON-TB Gold Plus Interpretation summarizes the interferon-gamma release assay result used to help identify tuberculosis infection. A negative result lowers the likelihood of TB infection, while positive or indeterminate results require clinical interpretation with risk factors, symptoms, and any follow-up testing.

QuantiFERON-TB Nil measures baseline interferon-gamma in the sample before antigen stimulation. It is a control value used to interpret the assay rather than a standalone wellness biomarker.

QuantiFERON-TB Mitogen-Nil measures the interferon-gamma response to the positive control after subtracting background. It confirms whether the sample can mount an expected immune response for assay interpretation.

QuantiFERON-TB TB1-Nil measures the CD4+ T-cell interferon-gamma response to tuberculosis-specific antigens after subtracting background signal. It is part of the assay interpretation rather than a standalone wellness biomarker.

QuantiFERON-TB TB2-Nil measures the CD4+/CD8+ T-cell interferon-gamma response to tuberculosis-specific antigens after subtracting background signal. It is used for assay interpretation rather than standalone wellness scoring.