Thyroid Disorder Monitoring — Ongoing

Thyroid Disorder Monitoring — Ongoing

Measure key hormones in thyroid function for those diagnosed with a thyroid disorder. This test should only be purchased as directed by your physician or if you are undergoing treatment for hypothyroidism. Read more
Test details

Sample type:
You do not need to do anything special to prepare for the sample collection. Fasting is not required for this test.
Test type: In Person
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+ $9.10 Physician Service Fee
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What Icon
This test measures the level of thyroid stimulating hormone (TSH) and thyroxine (T4) in your blood.
Who Icon
Must be 18+ years of age to purchase.
How Icon
Schedule an appointment, then visit one of the Quest Diagnostics Patient Service Centers
About the Test

Thyroid Disorder Monitoring, Ongoing Test Panel measures the levels of TSH and T4 in your blood. These markers help determine whether your current treatment plan is working properly for your thyroid disease. This test is intended as an additional follow-up to our Thyroid Disorder Monitoring, Initial Test Panel.

This testing option is intended for patients with a known thyroid function disorder and may be recommended by a PWN physician as a follow-up to our Thyroid Disorder Monitoring, Initial Test Panel once treatment has started.


Noticeable changes in your metabolism (weight, temperature, and energy) may be a sign or symptom that there is too much or too little TSH in your blood. If TSH levels are too high or too low, this may indicate your thyroid is overactive (hyperthyroidism) or underactive (hypothyroidism). With this test panel, TSH and T4 blood levels are measured to help accurately determine whether your treatment dosage is providing the correct level of support.

This panel does NOT test for thyroid peroxidase (TPO) antibodies in your blood. See FAQs.

How Does it Work?
Take an in-person test at a Quest Diagnostics location.
Over 2000+ locations focus on your safety, confidentiality and convenience.
1. Purchase your test
Schedule your appointment after purchasing a test to minimize wait time.
2. Visit a location
Enter your zip code to find a Quest Diagnostics location closest to you.
3. Get results online
We will email you when your confidential results are available. 

What to expect with Quest

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Get lab work without having to wait and pay for an appointment with a doctor. Shop and choose from 75+ tests – the same quality tests that doctors use and trust, but no doctor visit required for purchase.

Easy to buy & simple to schedule

After your purchase, schedule an appointment at a nearby Quest Diagnostics location and have your specimen sample collected by a trained healthcare professional.

Fast online results, with support

Access test results from your phone as soon as they’re available, with the option to discuss your results with an independent physician at no extra cost.