QuantiFERON-TB Gold Plus
Viruses Included in Panel
Organisms Included in Panel
Test Utility
QuantiFERON (QFT) is a test that aids in the diagnosis of tuberculosis (TB) infections, either latent or active. It is recommended under certain conditions as an alternative to tuberculin skin test by the CDC. It is an indirect test that is intended to be used in conjunction with other medical and diagnostic findings that can be used to confirm infection.
Urine Drug Screen Profile Includes:
Methodology
This test assesses the cell-mediated response by using a peptide cocktail containing the MTB-complex-associated antigens, ESAT-6 and CFP-10 generally found in patients with TB. The patient's blood is mixed with the peptide cocktail, which stimulates T cells into producing interferon-gamma. Interferon-gamma is then detected using an enzyme-linked immunosorbent assay (ELISA).
Methodology
Screen Test Name | Assay Type |
|---|---|
ETG
| DRI |
Amphetamine
| DRI |
Barbiturates
| DRI |
Benzodiazepine
| DRI |
Cotinine
| DRI
|
Cocaine
| DRI |
Methadone
| DRI |
Opiate
| DRI |
Oxycodone
| DRI |
THC
| DRI |
Fentanyl
| DRI |
Buprenorphine | CEDIA
|
PCP
| DRI |
Individual Test Information Including Methodology & Reference Ranges
Reflex to UTI Criteria
Specimen Collection and Preparation
QuantiFERON-TB Gold Plus Blood Collection Tubes (four tubes are required).
Note: Tubes must be filled to a volume within the black mark on the tube (0.8 to 1.2 mL). Immediately after filling, shake 10 X firmly enough to coat the inside ot the tubes (do NOT shake vigorously or the test may be invalid).
Nil - gray
Mitogen - purple
TB1 - green
TB2 - yellow
Specimen Storage and Stability
Room Temperature: Up to 8 hours
Note: Please note that specimens must be received in the lab within 8 hours of collection to allow for specimen processing. There is an additional 8 hours of stability available to account for pickup and transportation. They must be incubated by the lab for 16-24 hours BEFORE any testing can begin.
Specimen Rejection
Received outside of stability
Specimen not stored properly
All four tubes not filled to within black indicator line
All tubes not shaken or shaken too vigorously
If samples are received centrifuged (spun)
Broken or leaking container
Specimen labeled incorrectly or not labeled
Reference Range (Cutoff)
Screen Test Name | Screen Test Name Cutoff (ng/mL) |
|---|---|
Cocaine | 300 |
Screen Test Name | Screen Test Name Cutoff (ng/mL) |
|---|---|
Benzodiazepine | 200 |
Screen Test Name | Cutoff (ng/mL) |
|---|---|
Buprenorphine | 5 |
Screen Test Name | Screen Test Name Cutoff (ng/mL) |
|---|---|
Amphetamine | 500 |
Screen Test Name | Screen Test Name Cutoff (ng/mL) |
|---|---|
Barbiturates | 200 |
Screen Test Name | Screen Test Name Cutoff (ng/mL) |
|---|---|
ETG | 500 |
Screen Test Name | Screen Test Name Cutoff (ng/mL) |
|---|---|
ETG | 500 |
Screen Test Name | Screen Test Name Cutoff (ng/mL) |
|---|---|
EDDP | 100 |
Screen Test Name | Screen Test Name Cutoff (ng/mL) |
|---|---|
Fentanyl | 1 |
Screen Test Name | Screen Test Name Cutoff (ng/mL) |
|---|---|
Methadone | 300 |
Screen Test Name | Screen Test Name Cutoff (ng/mL) |
|---|---|
PCP | 25 |
Screen Test Name | Screen Test Name Cutoff (ng/mL) |
|---|---|
Opiate | 300 |
Screen Test Name | Screen Test Name Cutoff (ng/mL) |
|---|---|
Oxycodone | 300 |
Screen Test Name | Cutoff (ng/mL) |
|---|---|
Methamphetamine | 500 |
Screen Test Name | Cutoff (ng/mL) |
|---|---|
THC | 50 |
Screen Test Name | Cutoff (ng/mL) |
|---|---|
ETG | 500 |
Amphetamine | 500 |
Barbiturates | 200 |
Benzodiazepine | 200 |
Cotinine | 500 |
Cocaine | 300 |
Methadone | 300 |
Opiate | 300 |
Oxycodone | 300 |
THC | 50 |
Fentanyl | 1 |
Buprenorphine | 5 |
PCP | 25 |
Reference Range
Negative
Numerical values will also be provided for Nil, Mitogen - Nil, TB1 and TB2 along with the associated reference ranges.
Parameter | Reference Range |
|---|---|
Glucose | Negative |
Bilirubin | Negative |
Ketones | Negative |
Specific Gravity | 1.005 - 1.030 |
Blood | Negative |
pH | 5.0 - 8.0 |
Protein | Negative |
Urobilinogen | 0.0 - 1.0 mg/dL |
Nitrate | Negative |
Leukocyte Esterase | Negative |
Microscopic Evaluation | |
WBC | Negative |
RBC | Negative |
Hylaine Casts | Negative |
All other Parameters | Negative |
Parameter | Reference Range |
|---|---|
Microscopic Evaluation | |
WBC | Negative |
RBC | Negative |
Hylaine Casts | Negative |
All other Parameters | Negative |
Parameter | Reference Range |
|---|---|
Glucose | Negative |
Bilirubin | Negative |
Ketones | Negative |
Specific Gravity | 1.005 - 1.030 |
Blood | Negative |
pH | 5.0 - 8.0 |
Protein | Negative |
Urobilinogen | 0.0 - 1.0 mg/dL |
Nitrate | Negative |
Leukocyte Esterase | Negative |
CBC | Adult Male | Adult Female | Adult Female 10^3/uL | Adult Female % |
|---|---|---|---|---|
WBC
| 3.5-10.5 10³/uL | 3.5-10.5 10³/uL | ||
RBC
| 4.32-5.72 10⁶/uL | 3.9-5.03 10⁶/uL | ||
HGB | 13.5-17.5 g/dL | 12.0-15.5 g/dL | ||
HCT | 38.8-50.0% | 34.9-44.5% | ||
MCV | 81.2-95.1 fL | 81.6-98.3fL | ||
MCH | 27-35 pg | 27-35 pg | ||
MCHC | 31-36 g/dL
| 31-36 g/dL
| ||
RDW | 11.8-15.6% | 11.9-15.5%
| ||
PLT | 150-450 10³/uL | 150-450 10³/uL
| ||
Differential | Adult Male 10³/uL | Adult Male %
| ||
Neutrophils | 1.7-7.0 | 55-70
| 1.7-7.0
| 55-70 |
Lymphocytes | 0.9-2.9 | 20-40
| 0.9-2.9
| 20-40 |
Monocytes | 0.3-0.9 | 2-8
| 0.3-0.9
| 2-8 |
Eosinophils | 0.0-0.5 | 1-4
| 0.0-0.5
| 1-4 |
Basophils | 0.0-0.3 | 0.5-1
| 0-0.3
| 0.5-1 |
Immature Granulocytes | 0-0.5 | <1.0
| 0-0.5 | <1.0 |
CBC | Adult Male | Adult Female |
|---|---|---|
WBC | 3.5-10.5 10³/uL | 3.5-10.5 10³/uL |
RBC | 4.32-5.72 10⁶/uL | 3.9-5.03 10⁶/uL |
HGB | 13.5-17.5 g/dL | 12.0-15.5 g/dL |
HCT | 38.8-50.0 % | 34.9-44.5% |
MCV | 81.2-95.1 fL | 81.6-98.3 fL |
MCH | 27-35 pg | 27-35 pg |
MCHC | 31-36 g/dL | 31-36 g/dL |
RDW | 11.8-15.6 % | 11.9-15.5% |
PLT | 150-450 10³/uL | 150-450 10³/uL |
Test | Adult Male | Adult Female |
|---|---|---|
ESR | 0-10 mm/hr | 0-20 mm/hr |
CBC | Adult Male | Adult Female |
|---|---|---|
HGB | 13.5-17.5 g/dL | 12.0-15.5 g/dL |
HCT | 38.8-50.0% | 34.9-44.5% |
Test | Adult Male | Adult Female |
|---|---|---|
Reticulocyte Count | 0.0216 – 0.0858 10^6/uL | 0.0195 – 0.0755 10^6/uL |
Testing Description
State Reportable Infection
Mycobacterium tuberculosis is a reportable infection. Positive results will be reported to the Oakland County Health Department by VHL.
Pediatric Range
Test Code
182879
Performed
Mondays and Thursdays
Contacts
Vibra Health Laboratory
1307- A, Allen Dr
Troy, MI 48083
(248) 846-0663
Last Updated
11/05/24 v.1