Test directory: QuantiFERON-TB Gold Plus, 1 Tube

Ordering Code6373
Test NameQuantiFERON-TB Gold Plus, 1 Tube
AliasQuantiFERON-TB Gold
TB Quantiferon
QuantiFERON-TB Gold in Tube
QuantiFERON Gold - IT
Interferon Gamma Release Assay
Preferred SpecimenWhole blood
Preferred ContainerLithium Heparin (Green) 6.0 mL, no gel
Optimum Volume6 mL
Collection InstructionsMix tube(s) well.
Handling InstructionsDo Not Freeze
Do Not Spin
Deliver the tube to Central Lab as soon as possible, within 12 hours of collection for ambient sample or within 48 hours of collection for refrigerated samples

At Central Lab, the Lithium Heparin tube will be processed into 4 special Quantiferon Tubes labeled as follows:
QX = Grey cap
QG = Green cap
QY = Yellow cap
QL = Lavender/Purple cap
Transport RequirementsOahu: Refrigerated
Airline: Refrigerated
Specimen StabilityRefrigerated: 48 Hours
Frozen: Not Stable
Prior to refrigeration, Lithium Heparin specimen must be inverted to dissolve heparin and left at room temperature for a minimum of 15 minutes. Sample must then be refrigerated within 3 hours from collection.
Rejection CriteriaExpired container/transport media, Frozen,
Insufficient quantity, Lithium Heparin tube received ambient beyond 12 hours or refrigerated beyond 48 hours from collection
This test has not been reviewed or approved by the U.S. Food and Drug Administration for use in individuals younger than age 17 years; however, CDC recommends interferon gamma release assay (IGRA) over tuberculin skin test (TST) in children down to the age of 5 years, and the American
Academy of Pediatrics Red Book recommends IGRA in children down to the age of 2 years. This test's performance characteristics have been monitored by Diagnostic Laboratory
Services, Inc. during ongoing verification/validation. The test can be used for clinical purposes, but the results should be interpreted in the context of the clinical impression, patient history and other diagnostic testing.
Avail. StatNO
Analytic Time3-5 Days
MethodologyELISA on special specimen collection tubes

Reference range(s)

ComponentAgeMale NormMale Critical LowMale Critical HighFemale NormFemale Critical HighFemale Critical LowUnitsAdd'l info