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T-Spot TB Panel

Message
Effective 9/11/17 this test is replacing the Quantiferon TB test. TB IGRA testing performed at Oxford Immunotec.


Test Code
T-SPOT TB PANEL(O)


Alias/See Also
IGRA


Preferred Specimen
Special dark green top tube (lithium heparin) from Oxford


Limitations

Note: Diagnosing or excluding tuberculosis disease, and assessing the probability of LTBI, requires a combination of epidemiological, historical, medical and diagnostic findings that should be taken into account when interpreting T-SPOT.TB test results. Refer to the most recent CDC guidance(http://www.cdc.gov/nchstp/tb) for detailed recommendations about diagnosing TB infection (including disease) and selecting persons for testing.




Reference Range

The test result is POSITIVE if (Panel A minus Nil Control) and/or (Panel B minus Nil Control) is greater than or equal to 8.
The test result is NEGATIVE if both (Panel A minus Nil Control)and (Panel B minus Nil Control) are less than or equal to 4. This includes values less than zero.
The test result is BORDERLINE if (Panel A minus Nil Control) or(Panel B minus Nil Control) is equal to 5, 6 or 7. Testing lab suggests submitting another specimen for testing.





Last Updated: September 5, 2017


The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.