High free T4 : Hi, I have just a blood test and... - Thyroid UK

Thyroid UK

140,292 members165,019 posts

High free T4

jamessbruce profile image
3 Replies

Hi, I have just a blood test and got the following results...

Thyroid function test

Serum TSH level 0.28 miu/L [0.2 - 4.0]

Serum free T4 level 30.6 pmol/L [10.0 - 20.0]

Above high reference limit

Can anyone shed any light on these..? I've Ben having trouble staying asleep. Feel OK in myself, been cycling alot and lost as about a stone in the last 5 months..

I go to bed and wake up 4 - 5 hours later... Feeling like I've not slept...

Cheers

Written by
jamessbruce profile image
jamessbruce
To view profiles and participate in discussions please or .
Read more about...
3 Replies
Aurealis profile image
Aurealis

Your levels are too high. Are you taking any thyroid hormone? If not you may be developing an overactive Thyroid and you need medical advice. You’ve either lost weight so need less or have levels too high and so have lost weight. Maybe you’ve been cycling to use up the energy generated by high T4.

greygoose profile image
greygoose

Not enough information, James. Do you have any sort of diagnosis? Are you taking any thyroid hormone?

Just testing the TSH and FT4 doesn't tell the full story. You also need to have an FT3 result, and - most importantly - antibody results.

If you don't already have a diagnosis, the average GP is going to look at these results and tell you you have Grave's. However, a more realistic diagnosis would be Hashimoto's Thyroiditis - aka Autoimmune Thyroiditis - but I doubt your GP is capable of making that diagnosis. Which is why you absolutely need your antibodies tested - TRAB or TSI for Grave's, and TPO for Hashi's.

If I were you, I would refuse all medication until the antibodies have been tested and you have the results in your hands. :)

SlowDragon profile image
SlowDragonAdministrator

You also need vitamin D, folate, ferritin and B12 tested

Insomnia linked to low vitamin D and low B vitamins

Private tests are available. Thousands on here forced to do this as NHS often refuses to test FT3 or antibodies or vitamins

thyroiduk.org.uk/tuk/testin...

Medichecks Thyroid plus ultra vitamin or Blue Horizon Thyroid plus eleven are the most popular choice. DIY finger prick test or option to pay extra for private blood draw. Both companies often have money off offers.

All thyroid tests should ideally be done as early as possible in morning and fasting.

Essential to know antibodies results before assuming it's Graves' disease.....it's often Hashimoto's

If antibodies are high this is Hashimoto's, (also known by medics here in UK more commonly as autoimmune thyroid disease).

About 90% of all hypothyroidism in Uk is due to Hashimoto's. Low vitamins are especially common with Hashimoto's. Food intolerances are very common too, especially gluten. So it's important to get TPO and TG thyroid antibodies tested at least once .

Link about thyroid blood tests

thyroiduk.org/tuk/testing/t...

Link about antibodies and Hashimoto's

thyroiduk.org.uk/tuk/about_...

thyroiduk.org.uk/tuk/about_...

List of hypothyroid symptoms

thyroiduk.org.uk/tuk/about_...

Private testing for suspected Graves - TSI or TRab antibodies

medichecks.com/thyroid-func...

Not what you're looking for?

You may also like...

High T4 low TSH

Thyroid results with the normal range below. Hi I have just seen my latest Thyroid test results....

TSH & Free T4 levels

Hi Some excellent information on here. I have some blood tests which indicate Serum free T4 levels...

High cholesterol, high blood pressure & subclinical

So I've had dodgy blood tests for some years and finally forced the gp to treat me in November 25...

got my blood results for the last 5 years

Hi everyone i've picked my blood results up am posting them up to see if anyone can see where i'm...

Obtained my results as advised by the community, after being advised by GP to go for repeat test in 4-6 weeks as borderline thyroid issue...

Hi Just done the repeat blood test for thyroid and as I asked why my B12 was so high they are...