| Test Name: |
QUANTIFERON-TB GOLD PLUS, 1 TUBE (QUEST) |
| Test Code: |
2193495 |
| Alias: |
IGRA
LAB9079
QFT Gold Plus
QFT Plus
QFT TB
TB Gold
|
| CPT Code(s): |
86480
|
| Test Includes: |
The Centers for Disease Control and Prevention (CDC) has provided guidance on clinical considerations for tuberculosis (TB) testing such as QuantiFERON®-TB Gold Plus in conjunction with COVID-19 mRNA vaccines. Please refer to the QuantiFERON®-TB Gold Plus FAQ link (https://education.questdiagnostics.com/faq/FAQ204) for more detailed information on the latest CDC guidelines regarding TB testing and COVID-19 vaccines. |
| Preferred Specimen: |
6.0 mL whole blood |
| Container: |
Lithium Heparin (6.0 mL-green) - No Gel |
| Minimum Volume: |
6.0 mL |
| Collection Instructions: |
Collect minimum of 6.0 mL of blood by venipuncture into a lithium heparin (dk green) tube - No Gel. Hold tube at room temperature (17-25° C) for between 15 minutes and 3 hours after blood collection. Refrigerate at 2-8° C.
***6 mL tube MUST BE FULL*** |
| Transport Temperature: |
Refrigerated |
| Stability: |
Room temperature: unacceptable
Refrigerate: 48 hours
Frozen: unacceptable |
| Rejection Criteria: |
Sodium heparin (green-top) tubes
Quantiferon®-TB Gold Plus
4 tube collection kit
Incubated specimens
Gel barrier lithium heparin (green-top) tubes
Less than 6mL |
| Schedule: |
Set up: Mon-Sat; Report available 3 days |
| Method: |
Immunoassay (IA) |
| Performing Lab: |
Quest Diagnostics, Wood Dale; #36970 |
| Clinical Significance: |
This test is a blood-based interferon-gamma release assay (IGRA) used as an aid in the diagnosis of Mycobacterium tuberculosis infection. It is an immune response-based, indirect test for M tuberculosis infection (including disease) and is intended for use in conjunction with risk assessment, radiography, and other medical and diagnostic evaluations. Additional testing is needed to determine if a person who has tested positive has latent tuberculosis (TB) infection or TB disease. |
| Use: |
Updated 2/17/22 |
| Reference Ranges: |
Negative |
|
The CPT codes included in this publication are in accordance with Current Procedural Terminology, a publication of the American Medical Association. CPT codes are provided here for the convenience of our clients; however, correct coding often varies from one carrier to another, and HealthLab may bill specific carriers using codes other than those shown. Clients who bill for services should verify the code(s) with the applicable payor to confirm that their use is appropriate in each case.
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| Test Type: |
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