Quantiferon- TB Gold Plus
Collection Restrictions
Collection can only be done:
- Monday – Thursday 6:00 a.m. to 6:00 p.m.
- Friday
- Adele Hall: 6:00 a.m. – 5:00 p.m.
- All other locations: 6:00 a.m. – 12:00 p.m. (noon)
- Never on weekends or holidays
Collection Requirements
Adele Hall: Collections are done in the Outpatient Lab or by placing a Consult for Phlebotomy
Satellites: Collections are done in the Outpatient Lab
Special Instructions
The American Academy of Pediatrics recommend screening at-risk children as young as 2 years old for Latent TB infection with IGRA (interferon gamma release assays).
The new standards were published on June1, 2018 in the Red Book: 2018 report of the Committee on Infectious Disease.
Turn Around Time
3- 5 days
Batched testing performed Monday – Friday
Availability
Routine
Lab Processing Instructions
Specimen: whole blood
Room temperature
Tubes require a 16-24 hour incubation at 37°C to ensure correct processing
All tubes MUST be placed in the Immunology incubator
- Before 8:00 p.m. Monday – Thursday
- Before 6:00 p.m. Friday
Performing Laboratory
Adele Hall
Adele Hall Lab Section
Immunology
Instrumentation/Methodology
Diasorin - chemiluminescent immunoassay
Reference Ranges
CPT
86480