Thyroid Tests
Thyroid Testing
Thyroid Tests and Panels
The following test panels are used to evaluate the overall health of your thyroid by determining related hormone levels. These lab tests can be used to diagnose common thyroid disorders like Hashimoto's thyroiditis, hyperthyroidism, and hypothyroidism.
Thyroid Panel
A comprehensive thyroid panel that helps identify hormone imbalances so you can restore energy, metabolism, and overall wellness with confidence.
View DetailsThyroid Panel with TSH (Thyroid Stimulating Hormone) Popular Test
A comprehensive thyroid panel with TSH that delivers a complete picture of hormone balance so you can identify imbalances early and restore optimal health.
View DetailsFree T3 Test (FT3)
A targeted Free T3 blood test that measures your active thyroid hormone levels to help uncover metabolic imbalances and optimize thyroid health.
View DetailsFree T4 Test (FT4)
A precise Free T4 blood test that measures active thyroid hormone levels to help identify imbalances and support optimal metabolic health.
View DetailsReverse T3 Test
An advanced Reverse T3 blood test that helps distinguish true thyroid dysfunction from illness related metabolic changes for more precise thyroid evaluation.
View DetailsTriiodothyronine (T3) Test
A comprehensive Total T3 blood test that measures active and bound thyroid hormone levels to help detect and manage thyroid imbalance.
View DetailsTotal T4 (Thyroxine) Test
A comprehensive Total T4 blood test that evaluates overall thyroxine levels to help detect and manage thyroid imbalances.
View DetailsThyroid Stimulating Immunoglobulin (TSI) Test
A targeted TSI antibody test that helps identify autoimmune thyroid stimulation and confirm Graves disease for precise thyroid diagnosis.
View DetailsTSH Test (Thyroid-Stimulating Hormone) Popular Test
A reliable TSH blood test that serves as the first step in identifying thyroid imbalances and restoring hormonal balance.
View DetailsThyroid Peroxidase (TPO) Antibodies Test
A targeted TPO Antibodies blood test that detects autoimmune thyroid activity to help uncover the root cause of thyroid imbalance.
View DetailsParathyroid Hormone (PTH) Test
A comprehensive PTH blood test that evaluates parathyroid function and calcium balance to protect bone and kidney health.
View DetailsIodine Urine Test, 24-Hour
A comprehensive 24 hour iodine urine test that accurately measures iodine levels to support optimal thyroid function and metabolic balance.
View DetailsAbout our Thyroid Tests
The thyroid is essential for all parts of your body to function properly. It’s a butterfly-shaped endocrine gland in your neck that is responsible for producing two major hormones: T3 (triiodothyronine) and T4 (thyroxine). These chemical substances control how you use energy (your metabolism), helping to regulate heart rate, body temperature, digestion, brain health, and more. Most T3 and T4 are bound to proteins in the blood, but a small portion aren’t bound and circulate as free hormones.
The amount of T3 and T4 that your thyroid gland secretes is regulated by your pituitary gland. It senses thyroid hormone levels in your blood and works to maintain stable amounts of T3 and T4.
- If T3 and T4 levels are low, the pituitary gland secretes TSH (thyroid-stimulating hormone) to make the thyroid produce more T4, and ultimately more T3.
- When thyroid hormone levels are normal, the pituitary gland stops secreting so that the thyroid makes less T4.
Monitor Your Thyroid Function
The thyroid gland can become underactive (hypothyroidism) or overactive (hyperthyroidism), causing health complications. Evaluating thyroid hormone levels can help diagnose thyroid disorders.
Hypothyroidism
Hypothyroidism means that the thyroid gland doesn’t make enough thyroid hormone.
Symptoms of hypothyroidism include:
- Tiredness
- Weight gain
- Weakness
- Muscle and joint aches
- Hair loss
- Depression
- Difficulty concentrating
- Sensitivity to cold
- Memory loss
- Constipation
- Heavy or irregular periods
Common causes include:
- Autoimmune disease such as Hashimoto’s thyroiditis
- Surgical removal of the thyroid
- Radiation therapy
- Certain medications
- Too little iodine
Hyperthyroidism
Hyperthyroidism means that the thyroid gland makes too much thyroid hormone.
Symptoms of hyperthyroidism include:
- Increased appetite
- Nervousness
- Difficulty sleeping
- Weakness
- Fatigue
- Weight loss
- Enlarged thyroid (goiter)
- Sensitivity to heat
- Dry hair
- Hair thinning or loss
- Changes in menstrual cycle, such as light or missed periods
- Infertility
Common causes include:
- Grave’s disease (the most common cause of hyperthyroidism)
- Hyperfunctioning thyroid nodules
- Thyroiditis, or inflammation of the thyroid
- Excess iodine
More Tests Worth Investing In
General Wellness Panels
These commonly ordered blood work and urine lab tests help measure overall health and wellness, and are routinely ordered by doctors for insight into an individual's general health.
Comprehensive Health Panel (CBC+CMP+UA+LP+Iron+TSH)
The Comprehensive Health Panel expands wellness testing to include iron status, helping assess energy levels, oxygen transport, and anemia risk. It’s an excellent choice for individuals seeking a complete picture of metabolic, blood, thyroid, and nutritional health.
View DetailsStandard Health Panel (CBC+CMP+UA+LP+TSH)
The Standard Health Panel delivers a more comprehensive assessment by combining essential metabolic, cholesterol, blood, thyroid, and urinary testing. This panel offers deeper insight into how your major organs and systems are functioning together to support proactive, preventive care.
View DetailsBasic Health Panel (CMP+UA+LP)
The Basic Health Panel provides a foundational overview of your overall health by evaluating key markers related to heart health, metabolism, kidney and liver function. It’s an ideal annual screening to identify early health risks and monitor changes before symptoms appear.
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