Test Information:
QuantiFERON-TB Gold (QFT) is a simple blood test that aids in the detection of Mycobacterium tuberculosis, the bacteria which causes tuberculosis (TB). QFT is an interferon-gamma release assay, commonly known as an IGRA, and is a modern alternative to the tuberculin skin test (TST, PPD or Mantoux).
Specimen Container:
Green Top Tube (Lithium Heparin)
Specimen Type:
Whole Blood
Required Volume:
8 mL
Patient Preparation:
No Patient Preparation
Notes:
To obtain optimal results, it is recommended to transport freshly collected as soon as possible.
- However, if delay in transportation occurs, it is vital to follow the stipulated storage and stability. Specimen received beyond the stipulated storage and stability is considered “sub-optimal” in nature.
The following test results (resulted within a month) must be attached and/or provided upon specimen endorsement:
1. Date and Time of Collection
Storage & Stability
(Before Processing)
- Storage: 17 to 25°C
Stability: 16 hours
Transport Temperature:
Room (18˚C – 24˚C)
Test Category:
Batch
Test Schedule:
Specimen receiving CUT-OFF:
Saturday, 1200H
Monday, 1200H
Wednesday, 1200H
Processing:
Monday, Wednesday, Friday
Results Availability:
Tuesday, 1200H
Thursday, 1200H
Saturday, 1200H