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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 (Broadway, East, Northland, Kansas): Collections are done in the Outpatient Lab

Special Instructions

The American Academy of Pediatrics recommend screening all childen at risk for Latent TB infection. IGRA (interferon gamma release assays) do not have age restrictions.

The latest standards were published April 2024 in the Red Book: 2024-2027 Report of the Committee on Infectious Diseases (33rd Ed).

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

Reference range

CPT

86480