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T-Spot TB Test
Test Code478
CPT Codes
86481
Preferred Specimen
Specimens must be shipped the same day of collection, weekend draws are not acceptable. Specimens must be received at the Cox South laboratory no later than 4pm Monday-Friday; on the day of collection.
In order to allow sufficient transport time; specimens must be received in the Branson or Monett laboratories by noon Monday-Friday, on the day of collection.
Container/Tube: Sodium heparin whole blood (no gel tubes)
Specimen Volume:
Adults and Children >10 yrs: 6 mL
Children 2-10 yrs: 4 mL
Children 2 and under: 2 mL
NOTE: If patient is immunocomprimised; collect two tubes of blood
Transport Temperature
Room temperature
Methodology
Enzyme-Linked Immunospot
Setup Schedule
Monday through Friday
Reference Range
Negative
Clinical Significance
The T-SPOT®.TB test is a unique, single-visit blood test, also known as an interferon-gamma release assay (IGRA) for TB infection. The T-SPOT.TB test does not cross react with the bacille Calmette-Guerin (BCG) vaccine and there is no association between
T-SPOT.TB test results and immunocompromised status.
According to the CDC Guidelines, IGRAs (e.g. the T-SPOT.TB test) may be used in place of a TST in most situations and are preferred for BCG vaccinated individuals and for those persons who are unlikely to return for the reading of the test results
T-SPOT.TB test results and immunocompromised status.
According to the CDC Guidelines, IGRAs (e.g. the T-SPOT.TB test) may be used in place of a TST in most situations and are preferred for BCG vaccinated individuals and for those persons who are unlikely to return for the reading of the test results
Performed By
CoxHealth
Performing Laboratory
Oxford Diagnostic Laboratories
