Results of yearly blood test

[zwdvavw8]

erum TSH level 0.30 miu/L [0.2 - 4.0]

Ideal T4 replacement therapy indicated by TSH 0.2-2.0 miu/L

Can anyone tell me what this means, I’ve been told to ask for my results but it all double Dutch to me , is this result good or bad

thanks for reading

[SeasideSusie Remembering]

zwdvavw8

Serum TSH level 0.30 miu/L [0.2 - 4.0]

Ideal T4 replacement therapy indicated by TSH 0.2-2.0 miu/L

That's pretty straightforward really. It's telling you that ideal T4 replacement (i.e. dose of Levo) is indicated by a TSH result of between 0.2 and 2.0. Your TSH result is 0.3 so it comes within the range they say is ideal.

However, that's not the full picture so we can't really say how good your result is. Tests need are

TSH

FT4

FT3

But unfortunately, many doctors (or labs) only test TSH and think it's enough. TSH is not a thyroid hormone, it's a pituitary hormone, the pituitary checks to see if there is enough thyroid hormone, if not it sends a message to the thyroid to produce some. That message is TSH (Thyroid Stimulating Hormone).When there is not enough thyroid hormone (natural or replacement) TSH will be high.

If there is enough hormone - and this happens if you take enough of any replacement hormone (eg Levo) - then there's no need for the pituitary to send the message to the thyroid so TSH remains low.

So to know your actual thyroid hormone levels, FT4 and FT3 are needed. Because all the tests aren't always done by our GPs (or labs), many of us do private tests with one of ThyroidUK's recommended labs.

[zwdvavw8 in reply to SeasideSusie]

Thanks SeasideSusie that makes it much clearer 👍🏻