So confused TSH results? help: I had my TSH... - Thyroid UK

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So confused TSH results? help

11 Replies

I had my TSH tested 2 weeks ago and TSH was 2.82 and 2 days ago tested again in lab and it is 1.77. Can it go down that fast in two weeks? I am only taking selenium no thyroid meds for my antibodies which are 109-TPO. My T3 and T4 are all within range right in the middle of the normal ranges. Should I not take the levo trial for one month? Maybe the selenium is working? Does the decreased TSH mean the antibodies have decreased?

So confUSED I don't want to take levo if it mess things up..

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11 Replies
Joburton profile image
Joburton

Were the tests taken at different times of day, had you fasted and had you refrained from taking your meds for 24 hours?

in reply toJoburton

I wasn't fasting either time. The first test was at 10 am . Then the second test was at 4pm. I didn't think that it would make that much difference. I only started taking the selenium supplements after the first test maybe that helped ...

Joburton profile image
Joburton in reply to

All these variants can make a lot of difference! Best to compare results from an 'even playing field' otherwise it will be difficult to evaluate your requirements for meds.

From my understanding; selenium assists in conversion from T4 to T3 so would not necessarily affect your TSH or antibody results.

in reply toJoburton

I've read that selenium cut the antibodies in half in 3 months from

One article. And also other similar articles in this matter . I haven't heard about it converting t4 to t3.Thanks for the info

Clutter profile image
Clutter

Orangepie, time of testing and eating/drinking anything other than water will considerably affect the TSH results which is why members are advised to have early morning and fasting tests. Have a look at the graph below:

healthunlocked.com/thyroidu...

in reply toClutter

Very helpful chart !

greygoose profile image
greygoose

So, if you'd had your TSH tested at 8.0 am, and fasted, it would probably have been a a bit higher than 2.82.

TSH is more likely to have an effect on antibodies, rather than antibodies having an effect on TSH. That's why Hashi's people should maintain a suppressed TSH.

in reply togreygoose

Thank you interesting theory about TSH and antibodies effect .

greygoose profile image
greygoose in reply to

Umm... it's not really just a theory.

It could vary by that much over the space of a single day (up to around 75% and that change is only about 62%). Were the tests done at exactly the same time of day and after the same meals or fasting? TSH is higher in the morning.

in reply toAngel_of_the_North

That sounds about right! The ones I had in the morning where 2.82 and 2.84 and the one in the afternoon was 1.77. Thanks for that info

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