Since Feb 12 I have been paying for private blood tests (GP/Labs hopeless).
I have never on a blood test looked like I have severe HyPO, HyPO yes but not severe.
Because of a post and passing comment on here I decided to have a blood test & a urine test for thyroid hormones within 48hrs of each other.
The serum blood test showed a good result for TSH, T4 & T3.
HOWEVER, the urine test showed a VERY Low result for T4 & T3.
Serum blood is a snapshot in time. Urine is a 24hr picture. I believe Dr P does not favour serum blood tests. I now can see why, they give a very false picture.
I feel frustrated to have wasted money on serum tests when it has given a fake poicture of whether the hormone is actually gettig into the cells. More importantly I was oblivious to the fact that my T4/T3 was actually not doing anything in my cells.
That the NDT I take is simply floating around in my blood.
I AM WONDERING WHY IT IS NOT MORE WIDELEY SUGGESTED ON THE FORUM THAT BLOOD TESTS FOR THYROID ARE NOT AN ACCURATE PICTURE POTENTIALLY.
THAT URINE TESTS ARE THE MORE ACCURATE PICTURE.
It is my understanding that if the hormone is not getting into our cells then we will remain HyPO?
What is a puzzle to me is that my symptoms or lack of them does not reflect the low T4/T3 urine test.
I take a weeny dose of NDT, perhaps I am just fortunate.
I am now on a mission to see how I can improve the status quo of my urine test results.
My ferritin, iron, saturation B12, D3 are all not too bad as I have worked on them all last year and still now I supplement.
I suspect that the mercury in my body from amalgams (all now removed) is blocking the uptake of T3 in my cells. Selenium is required to convert T4 to T3, my Selenium is deficient, despite supplementing it. Genova suggest that Selenium can be impaired by the presence of heavy metals such as mercury, cadmium and lead.
I wonder if there are a LOT more HyPO people who have this underlying issue too.
My gut instinct is that it could well be a big clue to some folks thyroid ailments. But that's just my take on it.