Skip to content

Our main services are operating as normal. Find out more.

Thyroid Monitoring Blood Test
Thyroid Monitoring Blood Test contents
Results on my.medichecks health portal
Thyroid Monitoring Blood Test

Thyroid Monitoring Blood Test

A convenient home thyroid function test which tests for TSH, FT4 and FT3. Find out if you have the right level of thyroid hormones for healthy metabolism.

Is it for you?

Do you have symptoms of a thyroid disorder and want to test both thyroid hormones as well as TSH? Or are you already taking levothyroxine but not feeling as well as you should be? If you want a thorough check of your thyroid hormones to make sure that you are converting T4 to the more active T3, then this quick, affordable, thyroid function test is the right test for you.
Blood sample 3 biomarkers included 2 working days turnaround

What's included?

Biomarker profile

  • Thyroid Hormones

Thyroid Hormones (3 Biomarkers)

This monitoring profile is an excellent test to check and monitor your thyroid hormones. It includes thyroid stimulating hormone (TSH) as well as free T4 (FT4) and free T3 (FT3). This test measures the level of free or unbound thyroid hormones which are biologically active. Most thyroid hormones are bound to proteins in the blood which transport them around your body. However, if thyroid hormones are bound, they are not readily available to your cells. FT4 and FT3 are a better measure of your thyroid function than measuring total levels of T4 and T3, and are more likely to explain any symptoms that you may have. 

Tests which only include TSH and FT4, don't identify those people who do not convert FT4 to the more biologically active FT3 easily. It is possible to have optimal levels of TSH and FT4 but still experience symptoms of an underactive thryoid if your levels of FT3 are low. This profile is especially important for people who are being treated for an underactive thyroid but are still experiencing symptoms, and for people who are taking some form of T3 medication like liothyronine or natural desiccated thyroid (NDT).

TSH is produced by the pituitary gland to stimulate the thyroid to produce thyroid hormones (mostly T4). If your TSH is high it often signifies that your thyroid is struggling to produce enough T4 for your body's needs. TSH on its own does not necessarily give a true picture of your thyroid function which is why it is important to test the thyroid hormones too.

Why take this test?

  • You have symptoms which could be caused by an overactive or underactive thyroid
  • You want to test your free thyroxine (FT4) and your free triiodothyronine (FT3) to check that you are converting properly
  • You are taking thyroid medication and want a regular check of your hormone levels
  • Your doctor will not routinely test your FT3

3 simple steps

  • Take the test

    Take the test - either using your kit or visit a clinic.
  • Post your sample

    Send your sample in the freepost pack to our fully accredited lab.
  • Get your results

    Get your doctor reviewed results on
Expert interpretation<br>
of your results

Expert interpretation
of your results

One of our team of doctors will review your results and give you personalised advice based on your medical history, lifestyle and health and fitness goals.

Your personal<br>
health centre

Your personal
health centre

Discover the easy way to track your health through our online portal, View your results with doctor's advice, monitor any changes over time and see the improvements you can make to your health with simple lifestyle changes.

Questions? Let us help

Questions? Let us help

Our customer care team are on-hand to help you find the test that's right for you. Get in touch via phone, live chat or email.

Laboratories you can trust

Trusted by the NHS and private clinics alike, you can be sure of the highest testing standards from our partner laboratories

What our customers say

We ask every Medichecks customer about their experience - read what they have to say


Our tests are not a substitute for seeing your doctor, especially if you are suffering symptoms. Our doctors will 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 your doctor for any necessary follow-up action.