Thyroglobulin is a protein produced by the thyroid gland. It is made up of the thyroid hormones thyroxine (T4) and triiodothyronine (T3).
Thyroglobulin levels may be elevated if thyroid cancer is present. Elevated levels after thyroid surgery may also indicate metastatic or recurrent thyroid cancer. Levels may also be elevated in other diseases.
Caroline Rea, RN, BS, MS



