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Quantiferon TB Gold


The Quantiferon-TB Gold (QFTB-G) is a test recommended for detection of the cellular immune response to infection with Mycobacterium tuberculosis, the agent that causes tuberculosis (TB).
Synonyms: Interferon-gamma Release Assay (IGRA) for Mycobacterium tuberculosis

Specimen Required

Collection: 6 mL whole blood collected in a no gel lithium heparin (green-top) tube

Collect 6 mL of blood by venipuncture into a lithium heparin (green-top) tube. Hold tube at room temperature (17-25º​C) for between 15 minutes and 3 hours after blood collection. Refrigerate at 2-8º​C sodium heparin (green top) tubes.

CPT Code(s)