Chinges in blood test..: I have had underactive... - Thyroid UK

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Chinges in blood test..

Rosemarysnotes profile image
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I have had underactive thyroid since 2001. Blood test 18 months ago showed need to increase Meds. Now showing over active.but I've never felt so good. So Dr says reduce Meds. ..anyone else had same thing...

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Rosemarysnotes profile image
Rosemarysnotes
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greygoose profile image
greygoose

The majority of people I should think!

But, your bloods aren't showing 'over-active', they can't, you're hypo. They might be showing over-medicated, but then again, they might not. If your doctor is just looking at the TSH, then he doesn't know what he's doing. You need to have the FT4 and the FT3 tested, to know if you're over-medicated.

Do you have copies of your results? If so, post them, and the ranges, on here, and let's have a look. If not, ask for a print-out. If you live in the UK, it is your legal right to have a copy. :)

SlowDragon profile image
SlowDragonAdministrator

Dr Toft, past president of the British Thyroid Association and leading endocrinologist, states 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)."

You can obtain a copy of the articles from Thyroid UK email dionne.fulcher@thyroidUK.org. print it and highlight question 6 to show your doctor.

Prof Toft - article just published now saying either "overmedcation" with high FT4 or small addition T3 is likely essential for many

rcpe.ac.uk/sites/default/fi...

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