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ID:1034 IFN-gamma test -Quantiferon -GPs only
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Description 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.
Indication This test can be used to diagnose active tuberculosis and latent tuberculosis infection (LTBI).
Additional Info Blood is collected into Lithium Heparin tubes and transported to the laboratory for transfer into the QuantiFERON TB Gold Plus system. 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.
Concurrent Testsna
Dietary Requirementsna
Interpretation

DepartmentVirology
SampleBlood
TubeTB QuantiFERON Gold-Plus
Tube Picture
Collection Conditions 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.
Min. Vol
Freq.

Ref. Range (Male)
Ref. Range (Female)
Ref. Range (Paed)
Ref. Range Notes
Units - Not Defined -
IP Acute TAT6 days
IP Routine TAT6 days
GP Acute TAT6 days
GP Routine TAT6 days
Turnround CommentNA

Originally edited by : na. Review due on 14/05/2019 09:08:00. Published By on 14/05/2018 09:08:00.