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Thyroid function test

Thyroid function test

Thyroid (TSH) blood test

The thyroid gland is a walnut sized gland in your neck just below your Adam's apple. It produces a hormone called thyroxine which plays an important role in the metabolism of all the cells in your body. Your thyroid can be underactive (hypothyroid), which means that the cells in your body slow down, for example your heart rate will decrease and you might gain weight. If your thyroid gland is overactive (hyperthyroidism) which is where your thyroid gland produces too much thyroxine and the cells and organs work much quicker than they should. Symptoms of hyperthyroidism include an increase in heart rate, tremors and weight loss.

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Thyroxine is produced by the thyroid gland and regulates the metabolism of all your cells and organs. As well as thyroid function tests, you might also want to consider your cortisol hormone test. This hormone is produced by the adrenal glands which sit on top of your kidneys. Abnormal levels of cortisol can cause similar symptoms.

Thyroxine (free T4 or T4)

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TSH is produced by a small gland situated at the base of the brain called the pituitary gland. It stimulates the thyroid gland to produce thyroxine (often called free T4 or T4) to keep your cells and organs working as they should.

Thyroid stimulating hormone test (TSH test)

What's included in this thyroid blood test?

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Thyroid blood test price

The cost of a private thyroid function test at our clinic is £49.

Thyroid blood test results

You’ll receive a doctor reviewed report online via our secure portal, your report will show you the normal levels and whether your results are within this normal range. You’ll also receive personalised recommendations on how to stay healthy.

Dr Ravi Gowda

Dr Ravi Gowda, Consultant physician or one of his highly trained clinical colleagues will be looking after you. 

Who will be providing your thyroid function test?
More about the team
More about the team
Book appointment online

1. Book an appointment online

Book and pay for your health check consultation online.

Attend appointment

2. Attend your appointment 

Visit the clinic for your appointment and blood tests. 

Receive results

3. Get your blood test results

View your results on our secure online portal in 1-3 working days.

How it works
We're a team of trained experts

Experts in Infectious Diseases, General and Travel Medicine

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Over 21 years of experience in Travel Health

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Cared for more than

10,000  patients

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Over 150 5 star reviews on Google Reviews

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Frequently asked questions
  • As you will only be attending for the blood test, it will be quick, just 10-15 minutes.

  • If you’re not so good with blood tests, it’s worth bringing some water to drink afterwards just in case. You can also make sure you are well hydrated before coming for your test (it should only be water).


    If it’s a cool day bring plenty of warm clothing as this makes it easier for our team to take the blood test. If you’re on medications/ herbal or vitamin supplements let us know what they are as some medications can affect the results.

  • Yes, you don’t need to fast for this blood test.

  • Thyroid blood test results usually take 1 - 3 working days.

  • Any results outside the normal range are reviewed by our doctors and shared with you through our secure online portal. We’ll ask you to contact your GP for further assessment but if it’s urgent then we’ll call you, so please make sure you give us a contact number when you book your appointment.


Dr Ravi Gowda, Consultant in Infectious Diseases and Travel Medicine


Caitlin Lancaster, BSc

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