Blood Test results and the doctor is reducing m... - Thyroid UK

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Blood Test results and the doctor is reducing my thyroxine.

GLENNIE profile image
7 Replies

TSH Level 0.01 mu/L

Free T4 23.8 pmol/L

Free T3 4.7 pmol/L

Are these results good or bad?

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GLENNIE profile image
GLENNIE
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7 Replies

Snap, almost identical to mine a week ago although they didn't do T3. Doctor wanted to reduce my levo as well but I didn't want to go there as I still feel unwell. He has given me a referral to a private endo (my request) as I have had enough of this endless flitting backwards and forwards and getting nowhere.

Someone with more experience will be along to comment on the results but looks to me that you are short of T3, perhaps there is a conversion problem.

Moggie profile image
Moggie

Without your ranges - these are usually in brackets after the results - I cant be 100% accurate but your T4 does look a little high and your T3 could be a bit higher.

Have you had your B12, VitD, Iron, Ferritin and folates tested. If any of these are low then they could stop you converting your T4 into the T3 your body needs. How are you feeling?

When you go back to the GP's ask him/her outright if he/she thinks you might have a conversion problem, make sure you understand his/her explanation and then say that you know if any of the above are low in range this can interfere with the conversion process so maybe testing all the above would be appropriate before reducing your levo.

Moggie x

Moggie x

GLENNIE profile image
GLENNIE in reply toMoggie

Ok thank you.

My ranges are TSH (0.27 - 4.2)

Free T4 (12.0 -22.0)

Both classed as abnormal.

I have spoken to my doctor and she has agreed that she will only drop to 125mcg form 150mcg as agianst 100mcg (large drop) On 125mcg before I felt awful, all the normal symptoms including hair loss. I have been on these tablets for 40 years and was at one stage taking 225mcgs. I dont know why they keep changing the tablets.

Once again thank you

Glennie

Moggie profile image
Moggie in reply toGLENNIE

Please ask for the vitamin tests as it could be these causing the problems.

Moggie x

Muffy profile image
Muffy

You could take the BMA book on thyroid conditions to your GP.

Dr. Toft was a previous physician to the Queen. As long as your T3 is within range (and yours is a little low), then it is fine if the TSH is <0 and your FT4 is high (around 30ish)..

Thyroid function tests and hypothyroidism

Dr. A. Toft

BMJ 2003;326:1087 (17 May, doi:10.1136/bmj.326.7398.1087

However, some achieve a sense of wellbeing only when serum thyroid stimulating hormone is suppressed, when we take care to ensure that serum triiodothyronine is unequivocally normal.’

marram profile image
marram

Even given that you have not put the ranges in, the huge difference between the FT4 and the T3 suggests you are not converting very well. A reduction would take your T3 below most ranges, unless your lab is hugely different from all the others. That is not going to help you very much

As Moggie said, you really need to look at the important vits and mineral, especially iron, D3 and B12. Even levels which are low-normal could prevent conversion of T4 to T3. They really need to be optimal.

Mihirmodi profile image
Mihirmodi

FT4 RESULT IS 0.27

IS IT NORMAL?

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