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Latent Tuberculosis Infection Testing


South West London Pathology provides a latent Tuberculosis Infection (LTBI) testing service for the London region on behalf of NHS England.

Our service includes arranging collection of the samples; analysis; interpretation reporting and feedback of the results.

Test flowchart explaining the process
SWLP LTBI Testing Flowchart v3.0 – pdf

If you need to order a test use this request form
IGRA Request Form – 001 – pdf

Instructions on collecting and packaging a blood sample
SWLP LTBI Blood Collection v2.0 – pdf

How to configure your IT system to receive results
Pathology Links Set Up (PMIP) v1.0 – pdf

How to interpret an indeterminate result
QuantiFERON Indeterminate Results v1.0 – pdf

Public Health Wales – LTBI request form Website v1, July 2018
Public Health Wales – LTBI Request Form Website v1 – July 2018


Further information



South West London Pathology is a partnership of

Croydon Health Service Kingston Hospital St Georges Healthcare

South West London Pathology is a partnership of

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