TSH levels: Hello everyone ! Haven't posted for... - Thyroid UK

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TSH levels


Hello everyone !

Haven't posted for ages but just keeping in touch with this site has helped so much .

Saw my endo last week and in preparation for new tests casually mentioned that I thought in the U.K. that the recommended TSH level for a medicated patient was under 1.

He said that I had misunderstood and that this level was only applicable to thyroid cancer patients.

I remember seeing a link given a while ago about this subject - can anyone refresh my memory or give me a link to pass on to him?

Another topic - I really admire all of you who manage to go gluten-free - you are so strong ! I keep trying and it does make such a difference but I am too weak and too much of a pig! I will keep at it!!! Mind you after talking to my endo about it his comment was that it's not in our (Greek) culture! Hmmm - not in the culture to watch your health? Actually now I think about it he could be right......

4 Replies

You are right - it is the aim of a treated thyroid patient to have a TSH of 1 or under. I will tag SeasideSusie from Admin who will give you the required info for your Endo. ☺

Crete in reply to Marz



Dr Toft article in Pulse Magazine, "The appropriate dose of levothyroxine is that which restores euthyroidism and serum TSH to the lower part of the reference range - 0.2-0.5mU/l.

In this case, free thyroxine is likely to be in the upper part of its reference range or even slightly elevated – 18-22pmol/l. Most patients will feel well in that circumstance.

But some need a higher dose of levothyroxine to suppress serum TSH and then the serum-free T4 concentration will be elevated at around 24-28pmol/l.

This 'exogenous subclinical hyperthyroidism' is not dangerous as long as serum T3 is unequivocally normal – that is, serum total around T3 1.7nmol/l (reference range 1.0-2.2nmol/l)."

Dr Toft is past president of the British Thyroid Association and leading endocrinologist.

You can obtain a copy of the article by emailing Dionne at tukadmin@thyroiduk.org print it and highlight question 6 to show your doctor.

Information from NHS Leeds Teaching Hospital pathology.leedsth.nhs.uk/pa...

Thyroxine Replacement Therapy in Primary Hypothyroidism

TSH Level ...... This Indicates

0.2 - 2.0 miu/L ...... Sufficient Replacement

> 2.0 miu/L ...... Likely under Replacement

Marz in reply to SeasideSusie

Thank you for coming to the rescue 😊

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