Thyroid check ultra

This is an important test that is useful to diagnose thyroid problems.

Venous blood
9 tests included
2 days turnaround



About Thyroid check ultra

What is the thyroid check Ultra?

Triiodothyronine (T3) and thyroxine (T4) are the two main hormones produced by the thyroid gland. T3 is the more powerful of the two hormones, which regulate metabolism throughout the body. T4 acts both as a hormone by itself and as a precursor for T3 production. To stimulate the production of T3 and T4, the pituitary gland secretes thyroid-stimulating hormone (TSH).

Thyroid function is influenced by a variety of vitamin and mineral levels such as ferritin, B12 and folate. When measured together, all these factors can provide information on thyroid health and function. Antibodies are proteins typically produced by the immune system to target and protect against harmful entities.

In some cases, the immune system can malfunction, producing autoantibodies which target and attack the body’s own cells. Thyroid peroxidase antibodies are produced in Hashimoto’s disease and Graves’ disease. Thyroglobulin (a protein specific to the thyroid gland) antibodies may be produced in thyroid cancer or autoimmune conditions.

Why take the test?

This measures a variety of factors associated with thyroid health. It is useful to diagnose thyroid problems or for those interested in knowing about the health and function of their thyroid gland.


What's tested

Inflammation Marker

Iron Status


Thyroid Function

How it works



Purchase your Kit

Just order a test online and get your kit delivered right to your door unless you are ordering a COVID-19 Fit to Fly test where you will be given appointment options to attend our clinics across the United Kingdom for a nose and throat swab PCR test at the checkout stage.



Take your test and post

Follow our simple instructions to take your sample and post back the enclosed prepaid envelope to our accredited lab for processing. We also offer home or workplace visits by a qualified nurse. For COVID-19 Fit to Fly tests you must attend one of our partner clinics for our trained collection officers to take your sample. You will then have the results emailed to you.



Get results directly to your dashboard

You will receive an email notification from our medical team when your results are available on your secure personalised health dashboard.