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 - Life Extension

Thyroid Panel (TSH, T4, Free T4, Free T3) Blood Test

  • Item # LC304131

A thyroid lab test that evaluates hormone levels

Thyroid hormones often change over time. This basic thyroid blood test panel can provide a clear picture of thyroid hormone production, which can help guide thyroid hormone replacement therapy.

This panel contains the following tests:

  • Thyroid-Stimulating Hormone (TSH)
  • Total Thyroxine (T4)
  • Free Thyroxine (T4)
  • Free Tri-iodothyronine (T3)

This panel is used to evaluate overall thyroid function. Low thyroid function may result in fatigue, dry skin, and excessive weight gain.


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.

SALE: $75.00
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It works great.


Love being in charge of my own health!


This test allows me to look at T3 and T4.


Always great to have an option to order my own labs.


Thyroid Panel (TSH, T4, Free T4, Free T3) Blood Test


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