Special Communication
QuantiFERON-TB Gold Plus
Effective September 12, 2018.
Cleveland Clinic Laboratories will only accept the QuantiFERON-TB Gold Plus (QTB-Plus) 4-Tube Assay for Mycobacterium tuberculosis testing (Normal: INFTBG, INFINC; High Altitude: INFTBP, INTPGP)
New QuantiFERON-TB Gold Plus Collection Tube Kits have a total of four (4) blood collection tubes instead of three.
Regular and High Altitude tubes are available to order from the Supply Storefront.
Please note: Prior to collection, tubes must be stored at 4° to 25°C.
Important Details
The 3-Tube QuantiFERON System will no longer be accepted.
Line draws will no longer be accepted.
• Venipuncture is the only acceptable draw type.
New order codes will be listed in the Test Directory on September 12, 2018.
• Collection sites, processing, handling, and incubation specifications will remain the same.
All unused 3-Tube QuantiFERON Kits should be returned to our laboratories.
• Tubes can be given to couriers or transport can be arranged through Client Services.
Any additional information will be included in a future Technical Update. If you have any questions about these changes, please contact Client Services for assistance.