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Laboratory Medicine

Test Directory / T Spot Testing (M. tuberculosis)

T Spot Testing (M. tuberculosis)

Lithium Heparin

TestT Spot Testing (M. tuberculosis)
Common Abbreviation
Test typeIGRA
Sample typeBlood
Specimen Container Type4.9ml Orange Top - Lithium Heparin
Sample Testing Amountx2 Paediatric: 1ml, Adult: 5ml
Turnaround Time5 days
LaboratoryOxford diagnostic laboratory
Reference Interval
Additional NotesT-SPOT samples have to be tested within 32 hours and are sent direct from the lab to Oxford Diagnostic Laboratory services via DX. T-SPOT samples MUST be taken and sent to the lab on the same day. Samples will only be processed Monday to Thursday and MUST reach the lab by 2pm. A minimum of TWO 4.9ml Lithium heparin samples (orange tops) are required and the time of sampling recorded. The turnaround times stated here reflect a combination of in-house and reference laboratory time spent on processing referred samples. For turnaround times for individual reference laboratories please look on the reference laboratories own websites.
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