6-TGN

6-TGN


The 6-TGN blood test is used to measure the active metabolites of thiopurine medications in your blood. It helps doctors check whether your medication dose is within the therapeutic range and working as expected. Abnormal levels may indicate under-treatment, risk of side effects, or the need for dose adjustment. This test is commonly used for patients being treated for autoimmune conditions or inflammatory bowel disease.

Parameters Covered

6-TGN

What the Test Measures

This test measures the level of 6-thioguanine nucleotides in your blood, which reflects how your body processes thiopurine medications. It helps assess treatment effectiveness and medication safety.

Turnaround Time for Results


Leicester: Most results are available within 1–2 working days (some tests may take longer)
Outside Leicester: Results are typically available within 2–4 working days (some tests may take longer)
Certain parameters: Some specialised tests may take 2–3 weeks to process.

How Results Are Delivered

Your personalised report will be securely sent to your registered email address.