Graves Disease Low TSH borderline T4: Can anyone... - Thyroid UK

Thyroid UK

141,244 members166,489 posts

Graves Disease Low TSH borderline T4

BusyBee100 profile image
9 Replies

Can anyone explain how my TSH of below 0.02 and T4 of 22.4 relate to each other? TSH is extremely low but T4 just above normal range so is this a mild or a severe relapse of my Graves Disease? (am back on Carbimazole). Appreciate any thoughts...

Written by
BusyBee100 profile image
BusyBee100
To view profiles and participate in discussions please or .
Read more about...
9 Replies
SlowDragon profile image
SlowDragonAdministrator

FT4 is only just above range

Have you had TSI or TRab antibodies tested to confirm this is definitely Graves?

Well really you need FT3, vitamin D, folate, ferritin and B12 tested as well

Are you on strictly gluten free diet? Many with Graves or Hashimoto's find it helps

Ideally ask GP for coeliac blood test first

amymyersmd.com/2017/02/3-im...

chriskresser.com/the-gluten...

thyroidpharmacist.com/artic...

scdlifestyle.com/2014/08/th...

BusyBee100 profile image
BusyBee100 in reply toSlowDragon

Hi thanks for answering my query I’ve bought a blood test for all those , still in the post and am trying to eliminate gluten. I had an uptake test which apparently confirmed GD but can’t find any evidence of TRAB test from 5 years ago when first got diagnosis which a new Endo has just given me a form for. In the meantime they are recommending RAI!

Angel_of_the_North profile image
Angel_of_the_North in reply toBusyBee100

Without a TRab test, you cannot be sure it is Graves.

SlowDragon profile image
SlowDragonAdministrator in reply toBusyBee100

That's a huge decision only to be taken once you have all the facts

BusyBee100 profile image
BusyBee100 in reply toSlowDragon

Yes I’m terrified of RAI from what I’ve read I had a severe thyrotoxosis following the most severe tonsillitis I’ve ever had with a T4 of 53, and my first relapse was also post viral second one not so clear but Endos seems to think first T4 level shows it’s GD

SlowDragon profile image
SlowDragonAdministrator in reply toBusyBee100

Presumably you had antibiotics for tonsillitis?

This may have upset gut biome

Gut issues and thyroid disease go together

hypothyroidmom.com/hashimot...

Valarian profile image
Valarian

Do you know what reference range was used ? Depending on the range, 22.4 could be high, but nevertheless within range, just above range, or quite a bit above range !

TSH will normally be suppressed if FT3 and FT4 are high, because the pituitary dooesn;t need to signal the thyroid to produce more hormone. If FT3 and FT4 come down, TSH will normally come up (it can stay suppressed for a long time if you have Graves').

People here who have hust been diagnosed with Graves' often report thyroid levels arund double the reference range or even higher - if this is a relapse of Graves' , a 'severe' relapse might see FT3 or FT4 elevated to double the reference range - so you need to have FT3 tested.

Valarian profile image
Valarian

So long as there is no reason why you cant take antihyroids (eh=g Carbimazole), you could say you'd like to try this approach first.

BusyBee100 profile image
BusyBee100

Thanks will check unfortunately my Gp doesn’t test for T3 or T4 and Just goes on TSH to prescribe carb so I never know what’s happening, by the time I get to the Endo (5 months later) all back to normal again so don’t have a clear picture of my history, frustrating!

Not what you're looking for?

You may also like...

graves disease and low TSH

I was wondering if anyone has experienced the same thing as I have, I’m a little worried but not...
Kitshustle profile image

Low TSH & Low T4

Can anyone help please? I was recently on 75mcg T4 and 20mcg of T3 but still felt low energy, dry...
MerCorn profile image

TSH low but T4 low?

my last results confused me as my TSH was 0.04 but my T4 was 13, previously was 18/19. historically...
fluffyhat profile image

Suppressed TSH Low T4

Hi all, Looking for some advice. I am currently on T4 only due to being pregnant. Being on T4 only...

Very low TSH and low T4

Got my test result - both TSH and T4 are low. TSH is 0.01mU/L and free T4 7.2pmol/L. Could someone...
Tuscansun profile image

Moderation team

See all
Jaydee1507 profile image
Jaydee1507Administrator
PurpleNails profile image
PurpleNailsAdministrator
SlowDragon profile image
SlowDragonAdministrator

Content on HealthUnlocked does not replace the relationship between you and doctors or other healthcare professionals nor the advice you receive from them.

Never delay seeking advice or dialling emergency services because of something that you have read on HealthUnlocked.