For clients who have previously received the BCG vaccine but have potentially been exposed to tuberculosis we may offer a blood test to determine if there is a possibility of latent or active TB. Information regards this below:
Interferon gamma release assay (IGRA) in OHS (NHS Grampian)
Further supporting information can be found on these links:
Tuberculosis: the green book, chapter 32 (gov.uk)
It is advisable that you are very well hydrated and warm for any blood testing appointments. Please contact our service if you are known to have poor venous access or any other issues which may require additional time for your appointment.