Inpatient and Outpatient Orderable
Quantiferon-TB Gold Plus
Build info
Synonyms
|
- QUANTIFERON TB GOLD
- TST
- INTERFERON GAMMA RELEASE ASSAY
- MTB
- IGRA
- TUBERCULOSIS
- QFT
- PPD
- LAB10025
|
Procedure Name
|
QUANTIFERON TB GOLD
|
Procedure Master Number
|
LAB10025
|
Cerner Name
|
Quantiferon Plus TB
|
Procedure ID
|
169666
|
Clinical Info
|
This test is to aid in the diagnosis of patients with latent Mycobacterium tuberculosis infection. This test is effective in individuals who
have received BCG vaccination.
|
Specimen Sources
|
Blood, Arterial
Blood, Capillary
Blood, Central Line
Blood, Venous
|
Specimen Types
|
Blood
|
Container
|
QuantiFERON Gold Plus (QFT-Plus) Collection Kit ( containers four tubes)
|
Collection Instructions
|
Specimen Volume: 1 mL whole blood
Fill up to fill line on each tube- remember the vacuum is not strong so be careful to look
at the volume. Make sure it is filled up to the black line.
Note: Maintain QTF PLUS tubes; Nil (gray), TB1 (Green),TB2 (Yellow) and Mitogen (purple) tubes at room temperature after collection.
The tubes must be filled to the black fill mark (~1mL)
Gently mix the tubes 10 times to ensure that the entire inner surface of the tubes has been coated with blood to solubilize antigens on the tube wall. This is a very important step in the QFT-Plus assay as poor mixing may lead to erroneous results.
Please indicate collection time on container.
|
Specimen Volume
|
1 mL whole blood
|
Transport Instructions
|
Room Temperature
|
Specimen Stability
|
16 Hours Room Temperature
|
Methodology
|
Enzyme-Linked Immunosorbent Assay (ELISA)
|
Days Performed
|
Monday through Sunday
TAT:3-5 Days
|
Performing Laboratory
|
Northwell Health Laboratories
|
CPT
|
86480
|
PDM
|
1853780
|
Only Orderable at Locations:
|
Orderable Everywhere
|
Results
|
| Component Name |
Base Name |
Common Name |
External Name |
| QUANTIFERON PLUS |
QTFPLUS |
QUANTIFERON PLUS |
QuantiFERON Plus Interpretation |
| QUANTIFERON TB PLUS NIL |
QTFPNIL |
QUANTIFERON TB PLUS NIL |
QuantiFERON Nil |
| QUANTIFERON TB PLUS TB1 MINUS NIL |
QFTTB1 |
QUANTIFERON TB PLUS TB1 MINUS NIL |
QuantiFERON TB1 Minus Nil |
| QUANTIFERON TB PLUS TB2 MINUS NIL |
QFTTB2 |
QUANTIFERON TB PLUS TB2 MINUS NIL |
QuantiFERON TB2 Minus Nil |
| QUANTIFERON TB PLUS MITOGEN MINUS NIL |
QFTMITOGEN |
QUANTIFERON TB PLUS MITOGEN MINUS NIL |
QuantiFERON Mitogen Minus Nil |
| QUANTIFERON CRITERIA |
QFTCRIT |
QUANTIFERON CRITERIA |
QuantiFERON Criteria |
|
Result Interpretation
Quantiferon-TB PLUS results are interpreted using the following criteria:
|
Nil
|
TB1 minus Nil
|
TB2 minus
Nil
|
Mitogen
minus Nil
|
QFT-Plus
Result
|
Report/Interpretation
|
|
IU/mL
|
IU/mL
|
IU/mL
|
IU/mL
|
|
|
|
|
≥0.35 and
≥ 25%
of Nil value
|
Any
|
Any
|
Positive
|
M.tuberculosis infection likely
|
|
Any
|
≥0.35 and
≥ 25% of
Nil value
|
Any
|
Positive
|
M.tuberculosis infection likely
|
|
<0.35 or
≥0.35 and
<25% of Nil
value
|
<0.35 or
≥0.35 and
<25% of Nil
value
|
≥0.5
|
Negative
|
M. tuberculosis infection
NOT likely
|
|
<0.35 or
≥0.35 and
<25% of Nil
value
|
<0.35 or
≥0.35 and
<25% of Nil
value
|
<0.5
|
Indeterminate
|
Likelihood of
M. tuberculosis infection
cannot be determined
|
|
> 8.0
|
Any
|
|
Forms
|
|
