QuantiFERON®-TB Gold Plus, 1 Tube
Test code
CPT code(s)*
Clinical significance
Test resources
Test FAQ
Details
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 under Test Resources for more detailed information on the latest CDC guidelines regarding TB testing and COVID-19 vaccines.
Methodology
Immunoassay (IA)
Alternative name(s)
QFT Gold Plus,IGRA,QFT Plus,TB Gold,QFT TB
Specimen requirements | |
|---|---|
| Patient preparation | None Specified |
| Preferred specimen(s) | 6 mL whole blood collected in a no gel lithium heparin (green-top) tube |
| Minimum volume | 6 mL |
| Collection instructions | Collect a minimum of 6 mL of blood by venipuncture into a lithium heparin (green-top) tube. Gently mix by inverting the tube several times to dissolve the heparin. Refrigerate at 2-8° C. Note: 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. |
| Transport container | Lithium heparin (green-top) tube |
| Transport temperature | Refrigerated (cold packs) |
| Specimen stability | Room temperature: Unacceptable Refrigerate: 48 hours Frozen: Unacceptable |
| Reject criteria | Quantiferon®-TB Gold Plus, 4 tube collection kit • Incubated specimens • Gel barrier lithium heparin (green-top) tubes |
Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.
*The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.
This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.
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