Thyroid Panel (TSH, T4, Free T4, Free T3) Blood Test
- Item # LC304131
A thyroid lab test that evaluates hormone levels

Thyroid Panel (TSH, T4, Free T4, Free T3) Blood Test
- Item # LC304131
A thyroid lab test that evaluates hormone levels
This panel contains the following tests:
This panel is used to evaluate overall thyroid function. Low thyroid function may result in fatigue, dry skin, and excessive weight gain. Instructions Fasting is not required for this test. Take all medications as prescribed. |
The laboratory services are for informational purposes only. It is not the intention of National Diagnostics, Inc and Life Extension to provide specific medical advice but rather to provide users with information to better understand their health. Specific medical advice including diagnosis and treatment will not be provided. Always seek the advice of a trained health professional for medical advice, diagnosis or treatment.
Both the physician and the testing laboratory are independent contractors with whom National Diagnostics, Inc makes arrangements for your blood tests. Neither National Diagnostics, Inc or Life Extension will be liable for any acts or omissions of the physician, the testing laboratory, or their agents or employees.
It works great.
Theresa
Love being in charge of my own health!
Diane
This test allows me to look at T3 and T4.
James
Always great to have an option to order my own labs.
Lisa
Why Life Extension?
100% Satisfaction Guarantee
Full one-year, no-hassle returns, money-back guarantee.
Highly Recommended
98% of our customers recommend us to family and friends. Life Extension is proud to be recognized as the #1 Catalog/Internet Merchant — 6 Time Winner.†
Complimentary, Personalized Guidance
Medical doctors, nutritionists & other health professionals are passionate about providing personalized solutions to help you achieve optimal health.
Efficacious Formulas
40 years of research dedicated to bringing you premium, scientifically-validated formulations.
Product Transparency
99% of our products are manufactured in the U.S, and a Certificate of Analysis is available for every product we produce.
Product reviews are provided for informational purposes only and reflect solely the views and opinions expressed by the contributors and not those of Life Extension. We do not verify or endorse any claims made in these reviews. Please read the full product reviews disclaimer.
Related Health Information
Essentials Quiz
Answer a few questions to choose the right supplements