Quantiferon® Gold Plus

Methodology

ELISA – interferon gamma release assay (IGRA) for Mycobacterium tuberculosisscreening

CPT Code

86480

Acceptable Specimens

Lithium heparin (no gel): minimum volume 5 ml
Blood collected directly into QFT-Plus Gold Collection Tubes

Specimen Storage

Lithium heparin (no gel): Store at 2-8°C

lood collected directly into QFT-Plus Gold Collection Tubes: Keep at room temperature and transport to lab the SAME day collected.

lood collected directly into QFT-Plus Gold Collection Tubes (incubated and centrifuged): Store up to 28 days at 2-8°C

Specimen Transport

Lithium heparin (no gel): Transport specimens to the lab at 2-8°C within 36 hours of collection.

Blood collected directly into QFT-Plus Gold Collection Tubes (not incubated): Keep at room temperature and transport to lab the SAME day collected.

Blood collected directly into QFT-Plus Gold Collection Tubes (incubated and centrifuged): Store up to 28 days at 2-8°C

Specimen Rejection

Blood collected directly into QFT-Plus Gold Collection Tubes or blood collected into lithium-heparin tubes are the only acceptable specimens. Reject all other specimen types.
Reject specimens outside of the hold time window.

Setup Days

As needed

Turn-around-time

Results are available approximately in 1 week upon arrival at the lab.

Lab Slip

QFT Form & Instructions (PDF: 128 kB)