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Quantiferon(R)-TB Gold Plus, 1 Tube
Test Code3040003498
Alias/See Also
1232500537
CPT Codes
86480
Preferred Specimen
NO GEL Lithium Heparin (DARK GREEN) tube
Minimum Volume
6 mL whole blood
Instructions
Collect a minimum of 6 mL of blood by venipuncture into a lithium heparin (dark 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.
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 Temperature
Refrigerated
Specimen Stability
Refrigerated: 48 hours
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Specimens collected in:
a) Quantiferon(R)-TB Gold Plus, 4 tube collection kit
b) Gel barrier Lithium heparin (green top) tubes
Plasma samples sent and incubated specimens are unsuitable as well.
a) Quantiferon(R)-TB Gold Plus, 4 tube collection kit
b) Gel barrier Lithium heparin (green top) tubes
Plasma samples sent and incubated specimens are unsuitable as well.
Reference Range
Negative
Last Updated: August 26, 2026
