The Leeds Teaching Hospitals NHS Trust

TB Quantiferon -IFN-gamma test GP's only

TB Quantiferon -IFN-gamma test GP's only

The QuantiFERON-TB Gold Plus (QFT-Plus) assay is an in vitro diagnostic test using a peptide cocktail simulating ESAT-6 and CFP-10 proteins to stimulate cells in heparinized whole blood. Detection of interferon-? by ELISA is used to identify in vitro responses to those peptide antigens that are associated with Mycobacterium tuberculosis infection

Tube Lithium Heparin tubes
ID 3734
Additional Information This test can be used to diagnose active tuberculosis and latent tuberculosis infection (LTBI).
Turn Around 6 days
Send to LGI Microbiology Department
Collection Con A minimum of 6ml of blood collected by venepuncture into Lithium heparin tubes is required. It may be necessary to distribute the sample between two tubes to ensure sufficient blood is available for testing. Gently mix by inverting the tube several times to dissolve the heparin. If possible send to the laboratory in a BLUE BAG, or clearly label the request form to say that it is for URGENT transfer into QuantiFERON tubes. Blood must arrive in the Microbiology Laboratory by 7pm on the day of collection. Samples must NOT be refrigerated at any time.
Samples must arrive in the laboratory by 7pm on the day of collection. This service is available for GPs only. Please contact Deborah Gascoyne-Binzi on 0113 392 3929 if further information is required.
IP Routine TAT 6 days
GP Routine TAT 6 days