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Thyroglobulin (TGA) - description and reference ranges

What is it?

Thyroglobulin is a protein produced by your thyroid gland. Thyroid hormones, such as thyroxine and triodothyronine are important here, as they are not normally released into your blood stream.

So if your blood shows elevated levels of Thyroglobulin antibodies, it may point in a direction of an inflamed thyroid or a general thyroid issue, such as hyperthyroidism, Graves′ or Hashimoto diseases.

Reference ranges

If your indicative TGA level is lower than the reference range for our laboratory:

In general, Hashimoto′s thyroiditis can cause your thyroid to not make enough thyroid hormone.

It is, however, essential to look at all of the thyroid markers and your symptoms, such as enlarged thyroid gland, constant tiredness, weight changes and muscles state.

We recommend you discuss this result with your GP.

If your indicative TGA level is higher than the reference range for our laboratory:

High levels of antithyroglobulin antibodies in your blood may be a sign of an autoimmune disorder, such as Hashimoto thyroiditis or Graves’ disease.

You should discuss this result with your GP.

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