Thyroid Panel

Serum

Biomarkers included in this panel:

Anti-Thyroglobulin ab. (0-39)

Thyroglobulin antibodies are antibodies that recognize and bind to thyroglobulin, interfering with its function. Thyroglobulin is critical for thyroid hormone production, so thyroglobulin antibodies usually indicate thyroid disease.

Learn more

Antithyroid Antibody

Blood

Antithyroid antibodies are crucial biomarkers for diagnosing and managing autoimmune thyroid diseases like Hashimoto's thyroiditis and Graves' disease. Detecting these antibodies early can lead to better treatment outcomes, helping to prevent

Learn more

Free Thyroxine

Serum

Thyroxine is a hormone produced by the thyroid gland. The term “free thyroxine” means the measured thyroxine that is not bound to proteins in the blood.

Learn more

Free Thyroxine Index

Serum

The free T4 index (FTI) is a blood test used to diagnose thyroid disorders. T4, also called thyroxine, is a thyroid hormone. The test measures how much of it is in your blood to help determine whether your thyroid gland is underactive (hypothyroidism

Learn more

Parathyroid Hormone (PTH), Serum

Serum

Parathyroid hormone (PTH) helps the body maintain stable levels of calcium in the blood. It is part of a feedback loop that includes calcium, PTH, vitamin D, and, to some extent, phosphorus (phosphate) and magnesium. Conditions and diseases that disr

Learn more

Reverse T3, Serum

Serum

Reverse T3 is a biologically inactive thyroid hormone; however, it does block the conversion of thyroxine (T4) to triiodothyronine (T3). Higher levels of reverse T3 can decrease the effect of thyroid hormone.

Learn more

T3 - Triiodothyronine (ng/mL)

Serum

T3, or Triiodothyronine, is a vital hormone in a thyroid panel, measured in nanograms per milliliter (ng/mL). It is essential for diagnosing and monitoring thyroid disorders like hyperthyroidism and hypothyroidism. High T3 levels may indicate hyperth

Learn more

T3, Free (Triiodothyronine)

Serum

A T3 (=triiodothyronine) test is a blood test that helps diagnose thyroid conditions, specifically hyperthyroidism (overactive thyroid). Healthcare providers typically order this test alongside other thyroid function tests. High or low T3 levels m

Learn more

T4, Free

Serum

Thyroxine or T4 is a hormone produced by the thyroid gland. The term “free T4” means measured T4 that is not bound to proteins in the blood.

Learn more

T4, Total (Thyroxine)

Serum

Thyroxine (T4) is a hormone produced by the thyroid gland. It is sometimes called total thyroxine because it includes both free T4 and T4 bound to proteins.

Learn more

Thyroid Peroxidase Antibodies (Anti-TPO Ab)

Serum

Thyroid peroxidase (TPO) is an enzyme that is critical for to thyroid hormone synthesis in the thyroid gland. Thyroid peroxidase (TPO) antibodies bind to and block the action of TPO, resulting in decreases in thyroid hormone levels. The presence of T

Learn more

Thyroid Stim Immunoglobulin

Serum

The measurement of thyroid stimulating autoantibodies, in conjunction with other clinical and laboratory findings, is used as an aid in the diagnosis of patients suspected of having Graves' disease.

Learn more

Thyroid-Stimulating Hormone (TSH)

Serum

Thyroid stimulating hormone (TSH) is one of the most important hormones currently used to diagnose thyroid abnormalities. This glycoprotein is secreted by the pituitary and stimulates release of thyroxine (T4) and triiodothyronine (T3) from the thyro

Learn more

Total T3

Serum

The T3 test measures triiodothyronine in blood to help doctors diagnose hyperthyroidism. The total triiodothyronine (T3) test is one of several tests used to diagnose thyroid disorders. T3 is an active thyroid hormone that your body creates by conver

Learn more

TRAb (TSH Receptor Binding Antibody)

TRAb (TSH Receptor Binding Antibody) is a biomarker used primarily to diagnose and manage thyroid-related disorders. It is especially useful for identifying Graves' disease, which is an autoimmune condition where the body's immune system atta

Learn more

Triiodothyronine (T3) Uptake

Serum

T3 Uptake - T3 Uptake (T3U) is used with measurement of Thyroxine (T4) to calculate the Free T4 Index. The calculated Free T4 is useful in the assessment of thyroid diseases. Elevations are associated with Hyperthyroidism or Thyroid Hormone Resistanc

Learn more