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HelpTest Code QFT4 QuantiFERON-TB Gold Plus, Blood
Ordering Guidance
This test is not recommended for use for diagnosis of active tuberculosis (TB) infection. It can be used as an aid to detect latent TB infection.
Specimen Required
Supplies:
-QuantiFERON-TB Gold Plus Collection Kit (T794)
-QuantiFERON-TB Gold Plus HIGH ALTITUDE Collection Kit (T795)
Collection Instructions:
1. Special collection, incubation, and centrifugation procedures must be followed.
2. For blood collection options (1-tube collection or 4-tube collection) and specimen transport instructions, see Mycobacterium tuberculosis Infection Determination by Quanti-FERON-TB Gold Plus Collection and Processing Instructions (T688).
Specimen Type
Whole bloodSpecimen Minimum Volume
4 mL: 1 mL per tube (4 tubes)
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Whole blood | Refrigerated | 28 days | QTBKIT |
Reject Due To
| Specimen submitted not following kit guidelines | Reject |
| Gross hemolysis | Reject |
| Gross lipemia | Reject |
| Gross icterus | Reject |
Reference Values
Negative
Day(s) Performed
Monday through Friday
Report Available
2 to 5 daysSpecimen Retention Time
Until testing is completePerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
86480