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Triiodothyronine (Free T3) Blood Test London


Results will be sent via email within 4 hours of your test(s)

*Please note that an additional £30 phlebotomy charge will be added to your bill. Most competitive prices on the market!


Triiodothyronine Biomarker Test

A Triiodothyronine blood test is used to indicate the levels of triiodothyronine in your body. Thyroid issues may run in genetics, so if you have family members that have had thyroid disease. Symptoms of hyperthyroidism include anxiety, weight loss, fatigue, increased heart rate, shaky hands, trouble sleeping, bulging of the eyes, and many others.

If you find the symptoms mentioned, London Blood Tests offers a reachable T3 test.

Instant Triiodothyronine Test

FT3 test in our clinic, London Blood Tests is done by taking a blood sample from you and sending it at our labs. If you are within the healthy parameter you don’t need to do another test, but if you fit within the unhealthy parameter, you will need another blood test.

What is Triiodothyronine and why is it important in the body

Triiodothyronine (FT3) is one of the major hormones made by your thyroid, besides thyroxine (T4). Both of them work together to regulate how your body uses energy, also controlling your weight, body temperature, muscle strength, and nervous system. The triiodothyronine hormone comes in two forms, bound T3 and free T3.

Private Triiodothyronine Test


You can book a FT3 blood test online and come give your samples to any of our private clinics.

Free Cancellation within 24 hr of your booking
Same Day Appointments
Results will be sent via email within 24 hours of your test(s)

Did you know?

There’s no risk when a blood test procedure is done?

T3 test in our clinic, London Blood Tests is done by taking a blood sample from you. There are absolutely no other risks besides a bit of pain when blood is extracted and a little mark on the extraction point.

What do results mean?

An abnormal result of a T3 test booked from our clinic London Blood Tests means there might be a sign of T3 thyrotoxicosis, overactive thyroid gland, liver disease, or toxic nodular goiter.

Our tailored tests will help you discover health insights to assess your wellbeing.

London Medical Laboratory is registered with and regulated by the Care Quality Commission. Certificate number: CRT1-4708702735

London Medical Laboratory is accredited in accordance with International Standard ISO 15189:2012

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