1. Purchase tests
2. Visit a Lab
3. Get ResultsReverse T3
This test measures the level of Reverse T3, a metabolite of Thyroxine (T4). Reverse T3 is the inactive form of Triiothyronine (T3) and may inhibit the action of the T3 hormone.
1. Purchase Tests
Choose the test you want (be sure to pick the laboratory you want to use).
Pay by credit card or PayPal®.
You pay directly and we do not bill your insurance.
(Note: to preserve lowest possible per test pricing, a single $10.00 lab fee is applied to one or more blood tests. You will not incur any additional charges at the lab.)
2. Visit a Lab
After purchasing your testing you will receive an email with your lab requisition. Bring this form to the laboratory.
NOTE: Be sure to visit the appropriate laboratory!
If you choose LabCorp only visit a
Labcorp location.
If you choose Quest Diagnostics
only visit a Quest location!
No appointment is needed, but making one can minimize your wait time.
Click here for HOURS & APPOINTMENTS
If you have selected the option to have an At Home Test Kit delivered to you, you will receive your test kit in the mail within 5 to 7 business days. (Not all tests are available as At Home Test Kits.)
3. Get Results
We’ll email you when your results are ready. Sign into your account to view and download your result reports.
Certain result values may prompt a phone call from our ordering provider to ensure the patient is aware of their result.
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Associated Categories
Frequently Ordered Together
Measures the amount of thyroid-stimulating hormone TSH, Free T3, Free T4, T3 Uptake, T4, T7, T3 Total and Thyroid Peroxidase Antibody (TPO).
Measures the amount of thyroid-stimulating hormone (TSH) and free thyroxine (T4) to evaluate thyroid function
Patients Ultimately Purchase
This package combines over 50 tests including the Expanded Health Check and additional heart, diabetes, liver, kidney, thyroid, hormone, cancer and vitamin testing.
This package combines over 50 tests including the Expanded Health Check and additional heart, diabetes, liver, kidney, thyroid, hormone, cancer and vitamin testing.
Measures the amount of thyroid-stimulating hormone TSH, Free T3, Free T4, T3 Uptake, T4, T7, T3 Total and Thyroid Peroxidase Antibody (TPO).
This panel includes the Essential Health Check plus additional heart, diabetes, liver, thyroid, hormone, cancer and vitamin testing.
This panel includes the Essential Health Check as well as additional heart, thyroid, hormone, cancer and vitamin testing.
Measures the amount of thyroid-stimulating hormone (TSH), T3 uptake, T4, T7 and T3 Total.
