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Thyroid UK
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Help with blood results please

I am on 100mcg thyroxine and since this appointment I am taking a one a day b complex and a one a day vit d


TSH 1.0 min/L

free T4 13.4 pool/L

total T3 1.7 nmo/L

TPO antibodies negative

VitaminD 71 nmol/L

B12 392 ng/L

ANA. Negative

IgA anti-tTG. Negative

That is the information exactly as it is written by the endocrinologist.

Weight gain is still my main "bugbear" as the tiredness has improved since taking the vits.


2 Replies

Hi Jackie, we need to see your free T3 level, not the total T3, to really see your status. Your TSH is excellent and that may be why they did not bother with FT3 but they don't seem to realize that once you are taking hormones, your TSH indicates very little about what happens to your dose, you need information about your FT3 with the range that the lab uses.

Very good that you don't seem to have antibodies but there is another one to test. You obviously have something going wrong somewhere. Keep in mind that your weight gain is hormonal but still may have something to do with your diet just not how much or how little you eat.

I would ask for further testing.



Without lab ref ranges (figures in brackets after results) it's not possible to interpret most of the results.

TSH 1.0 usually indicates adequate dosing but FT4 and FT3 results are meaningless without ranges.

Negative TPO means you do not have autoimmune thyroiditis (Hashimoto's).

VitD 71 is suboptimal. 75-200 is replete but most people are comfortable around 100. If you can get sun on your face and arms for a couple of hours during the week you won't need to supplement until Oct-Apr.

B12 392 is unlikely to be deficient but if you have symptoms in b12deficiency.info/signs-an... go to healthunlocked.com/pasoc

ANA = Anti nuclear antibodies.

Negative IgA antibodies to tissue transglutaminase means you probably don't have coeliac disease.


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