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About this test


This comprehensive profile includes tests for TSH, thyroid hormones (T4, FT4, FT3) and thyroid antibodies (thyroglobulin antibodies and thyroid peroxidase antibodies) for a thorough investigation into your thyroid status and autoimmune disorders which could be causing your symptoms.


It also includes tests for iron storage (ferritin) which can be low in individuals with thyroid disease, key nutrients folate and vitamin B12, as well as inflammation marker high-sensitivity C-Reactive protein. Vitamin D, important for immune function, is also included in this profile as is reverse T3 (rT3) - an inactive thyroid hormone which blocks the action of T3 in your cells.


Some practitioners believe that raised rT3 may explain why people suffer from symptoms of hypothyroidism when their active thyroid hormones are within the normal ranges.


How it works


Collect Sample

We send you an easy-to-use kit to collect your blood sample.


Post Sample

Post your sample to our lab in the prepaid envelope provided.


Important Information

Our tests are not a substitute for seeing your doctor, especially if you are suffering symptoms.We can interpret your results based on the information you have provided, but will not diagnose, consult or provide any treatment. You will be advised to see a nutritionist or doctor for any necessary follow-up action.



Thyroid Check Comprehensive +rT3

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