Test Overview
Method
Enzyme-linked immunosorbent assay (ELISA)
Method Description
IGRA (Interferon-Gamma Release Assay), IFN-gamma detection by ELISA
Result Included
QuantiFERON TB (QFT); TB1 Antigen Minus Nil; TB2 Antigen Minus Nil; Mitogen minus Nil; Nil; QFT Comment
Specimen
Specimen Type
BloodContainers
Collection Containers
QFT-Nil control (gray cap) tube
QFT-TB1 antigen (green cap) tube
QFT-TB2 antigen (yellow cap) tube
QFT-Mitogen control (purple cap) tube
Volume
Sample Volume
1.0 mL x 4
Collection & Handling
Collection Instructions
ยป View collection instructions To obtain the Quantiferon collection tubes, please contact our Client Care team at info@iclabs.ca or 416-422-3000 ext. 300.
Stability
| Refrigerated | Frozen |
|---|---|
| 28 days | Unacceptable |
Rejection Criteria
| Criteria | Specification |
|---|---|
| Specimen | Frozen |
Performance & Interpretation
Turnaround Time
16 days
Results
-
QuantiFERON TB (QFT)Negative
Comment
Diagnosing or excluding tuberculosis disease and assessing the probability of LTBI, which requires a combination of epidemiological and clinical findings that should be taken into account when interpreting QuantiFERON TB (QFT) results.
Note: The test results have been generated in an ISO15189 Plus laboratory accredited through AC Diagnostics, and are for medical purposes only. The laboratory is not forensically accredited.
-
TB1 Antigen Minus NilIU/mL
-
TB2 Antigen Minus NilIU/mL
-
Mitogen minus NilIU/mL
-
NilIU/mL
-
QFT Comment
Referral Location
Canada
Interface & Setup
HL7 Interface Codes
| Order Code | Result Name | Result Codes | Units |
|---|---|---|---|
| QTBHSC B | QuantiFERON TB (QFT) | 66119 | |
| TB1 Antigen minus Nil | 66120 | IU/mL | |
| TB2 Antigen minus Nil | 66121 | IU/mL | |
| Mitogen minus Nil | 66122 | IU/mL | |
| Nil | 66123 | IU/mL | |
| QFT Comment | 66124 |
Test Version
Last Updated
2025-09-16