Thyroid UK
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Medicheck test results

Hi guys, I've just had my test results back from medicheck "Thyroid Check Ultra" as am being told by my GP that my thyroxine level is too high but am still experiencing hypo symptoms and would love your assistance on interpreting what may be going on (TT in Aug 2016) as other than the TSH being too low, everything else is within range.

TSH = 0.008 (0.27 - 4.20)

Free Thyroxine = 21.75 (12.00 - 22.00)

T4 = 94.8 (59.00 - 154.00)

Free T3 = 5.95 (3.10 - 6.80)

Thyroglobulin Antibody = 18.290 (0.00 - 115.00)

Thyroid Peroxidase Antibodies = 19.88 (0.00 - 34.00)

Vitamin B12 = 195 (140.00 - 724.00)

Folate (Serum) = >19.95 (3.89 - 26.80)

Vit D = 75.61 (50.00 - 200.00)

Ferritin = 147.7 (13.00 - 150.00)


2 Replies

Your Vit D of 75.61 NMOL should not be less than 100 - 150 NMOL, according the the recommendations of fifty Vit D scientists that have been studying this for decades. See the heavy BOLD FONT in their statement.

Here's my Vit D blog with loads of info -

Your Vit B12 should be above 500, according to a retired anaesthetist's conversation with me.

1 like


TSH is very suppressed but you aren't over medicated because FT4 and FT3 are within range. You need FT4 high in range for the good conversion to FT3 you have, more so because you no longer have intra thyroidal conversion. If your dose is reduced both FT4 and FT3 will drop.

Read Treatment Options in Email if you would like a copy of the Pulse article to show your GP.

You will have some thyroid material left in the thyroid bed after surgery unless you had RAI ablatement post thyroidectomy but thyroid antibodies are negative for autoimmune thyroiditis (Hashimoto's).

B12 is low in range. Symptoms of B12 deficiency are similar to hypothyroid symptoms. See It may be worth asking your GP to rule out pernicious anaemia causing low B12. If you want more advice on B12 deficiency and PA contact

Folate, vitD and ferritin are good.


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