Comprehensive Thyroid Profile

Thyroid function can be affected by many factors, including nutritional deficiencies and environmental exposure to certain elements. This profile is designed to help evaluate elemental exposure and thyroid hormone synthesis. Tests in this profile include Dried Urine: Iodine, Bromine, Selenium, Arsenic, Cadmium, Mercury, Creatinine; and Blood Spot: Total T4, Thyroglobulin, TSH, free T3, free T4, TPO. 


Essential Thyroid Profile

Overall assessment of thyroid function. Includes: free Thyroxine (fT4), free Triiodothyronine (fT3), Thyroid Stimulating Hormone (TSH), Thyroid Peroxidase Antibody (TPO). (Blood Spot Test)


Thyroid Stimulating Hormone (TSH)

Measures the brain's response to circulating levels of thyroid hormones (T4 and T3). A general indication of thyroid activity. (Blood Spot Test)


Free Triiodothyronine (fT3)

Measures the bioavailable or free (f) level of active thyroid hormone T3. Free T3 (fT3) must remain within optimal range to keep the body functioning properly and is crucial for maintaining physical and mental health. (Blood Spot Test)


Free Thyroxine (fT4)

Thyroxine is the main hormone produced by the thyroid. Free T4 (fT4) measures the bioavailable level of T4 and is a good indicator of thyroid output by the thyroid gland. (Blood Spot Test)


Total T4 (T4)

Thyroxine (T4) is the main hormone produced by the thyroid. Total T4 measures the overall level of T4 output by the thyroid gland. (Blood Spot Test)


Thyroid Peroxidase Antibody (TPOab)

Elevated TPO indicates an auto-immune disease of the thyroid gland referred to as Hashimoto's or autoimmune thyroiditis. (Blood Spot Test)