Healthy thyroid function is essential for your overall health. See if yours is functioning as it should.
The thyroid gland is a vital hormone gland that helps regulate many different processes around the body. When thyroid hormones are out of balance, multiple body systems are affected. Hyperthyroidism occurs when the thyroid produces too many hormones and speeds up processes around the body, including increased body temperature, heart rate, and digestion. Hypothyroidism occurs when the thyroid doesn’t produce enough thyroid hormones, and processes around the body slow down, including a slower heart rate, a constant feeling of cold, and slower digestion leading to constipation.
Why consider this test?
This test can help diagnose hyperthyroidism (over-active thyroid) and hypothyroidism (under-active thyroid), as well as autoimmune conditions (Hashimoto’s thyroiditis and Graves’ disease) and thyroid carcinomas.
Undiagnosed thyroid issues increases the risk of multiple health complications, including osteoporosis, heart problems, skin problems, mental health issues, infertility, and birth defects.
Most thyroid health issues can be effectively managed to avoid additional health complications.
What increases your risk of thyroid problems?
Being female (5-8x more likely to have thyroid issues)
Over age 60
Recent pregnancy
Autoimmune disease (e.g. type 1 diabetes)
Personal history of thyroid issues (e.g. goiter)
Family history of thyroid disease
What’s included in the Complete Thyroid Health Test?

Thyroid Stimulating Hormone
Thyroid stimulating hormone (TSH) is a hormone produced in the pituitary gland that signals the production of thyroid hormones. Healthy adults typically have TSH levels within a reference range of 0.3-4.5 mIU/L. Abnormal TSH levels can indicate tumors of the pituitary, thyroid hormone resistance, hypothyroidism, or hyperthyroidism.

Free Thyroxine
Thyroxine (T4) is the major hormone produced by the thyroid gland. Free T4 is the biologically active form of T4, but is still relatively inactive. It is converted to a much more active hormone called triiodothyronine (T3) in the liver and other tissues. Free T4 analysis is an important part of monitoring thryoid function, as any changes in thyroid hormone production will be reflected in free T4 levels before free T3 levels are affected.

Free Triiodothyronine
Triiodothyronine (T3) is a hormone produced by the thyroid gland, usually through conversion of thyroxine (T4) to T3. Free T3 is the biologically active form of T3. T3 and T4 help to control how your body stores and uses energy (metabolism). Thyroid hormones also help control many of your body’s other processes.

Thyroglobulin Antibodies
Thyroglobulin is a protein produced from cells in the thyroid gland. Thyroglobulin antibodies (anti-Tg) are elevated when the body’s own immune system attacks the thyroid and targets thyroglobulin. This commonly occurs in autoimmune disorders, such as Hashimoto’s thyroiditis and Graves’ disease, and also occurs in 30-60% of thyroid carcinoma cases.

Thyroid Peroxidase Antibodies
Thyroid peroxidase is a protein produced from cells in the thyroid gland. Thyroid peroxidase antibodies (anti-TPO) are elevated when the body’s own immune system attacks the thyroid and targets thyroid peroxidase. This commonly occurs in autoimmune disorders, such as Hashimoto’s thyroiditis and Graves’ disease, often (but not always) in conjunction with elevated anti-Tg.
How It Works
Step 1. Order your test.
Choose the test that matches your need from our large array of tests. The kit will be delivered to your doorstep. There is no need to leave the comfort of your home.
Step 2. Collect your sample.
Collect your sample using the included instructions. Return your sample using the prepaid, pre-addressed packaging provided.
Step 3. Access your results online
Your sample will be tested as soon as it arrives at our lab. Access your results securely online via TherizonConnect.

Use TherizonConnect to view your test results quickly and easily
The results are only available through TherizonConnect, a free, secure patient portal that you can access on your smartphone, tablet, or desktop. You can also share your results with your doctor, family, or friends.
Thyroid Health FAQ
Here are the answers to the most frequently asked questions about this test. Please feel free to contact us if you have any other questions.
Who should consider this test?
This thyroid test is recommended for people who may be experiencing symptoms of an overactive or underactive thyroid, or have a family history of thyroid disease.
Are there medical professionals involved in the process?
All of our tests are developed with advice and input from medical professionals.
Will I receive any guidance with my results?
All result reports will include brief and easy to understand interpretations of each of the biomarkers tested. Background information is also available, but we recommend that you share your test results with your healthcare provider to obtain the most benefit from your test results.
How does the Complete Thyroid Health Test work?
Self-collect your sample following the detailed instructions included in the kit. Place your sample in the specimen bag provided and mail it back to the lab using the prepaid envelope inside the kit.
Our lab uses verified and approved chemiluminescent microparticle immunoassays (CMIAs) to accurately measure the five biomarkers included in this test. Your results are available through our online portal as soon as testing is complete.
What are my options if I have abnormal results?
It is important to share any abnormal results with you healthcare provider, as they can take into consideration your medical history, any previous test results, physical examinations, and other factors to determine the best treatment option.
What can cause thyroid hormone changes?
Thyroid hormone levels may fluctuate due to stress, diet, medications, childbirth, and menopause.
Hypothyroidism can be caused by Hashimoto’s thyroiditis (autoimmune condition), postpartum thyroiditis (temporarily affects 5-9% of women after childbirth), iodine deficiency, or a non-functioning thyroid gland (from birth).
Hyperthyroidism can be caused by Graves’ disease (autoimmune condition), overactive nodules within the thyroid, or excessive iodine.
What are treatment options for hyperthyroidism and hypothyroidism?
Medication, radioactive iodine, or surgical removal of the thyroid gland are effective treatments for hyperthyroidism. Treatment options for hypothyroidism include daily medications, natural thyroxine hormone extracts, and reduced consumption of substances that affect levothyroxine absorption (e.g. fiber, soy, iron).
What is Hashimoto’s thyroiditis?
Hashimoto’s thyroiditis is the most common cause of hypothyroidism. It is an autoimmune disorder that results in chronic inflammation of the thyroid, inhibiting the normal function of the thyroid, which results in low thyroid hormone production. Hashimoto’s thyroiditis usually progresses slowly over many years.
What is Graves’ disease?
Graves’ disease is the most common cause of hyperthyroidism, affecting about 1 in 200 people in the United States. It is an autoimmune disorder that causes the thyroid to produce more hormones than normal. It usually affects people between 30 and 50 years of age, with rates seven to eight times higher in females than males.
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