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

Item# LC304131

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  • Thyroid Panel (TSH, T4, Free T4, Free T3)
  • Item Catalog Number: LC304131

This panel is used to evaluate thyroid function. Low thyroid function may result in fatigue, dry skin, and excessive weight gain. The test includes the following:

  • Thyroid-Stimulating Hormone (TSH)
    Evaluates overall thyroid function.
  • Total Thyroxine (T4)
    Evaluates the total amount of T4 produced by the thyroid gland.
  • Free Thyroxine (T4)
    Evaluates the amount of T4 available to the cells and tissues.
  • Free Tri-iodothyronine (T3)
    Measures the amount of T3 (the active form of the hormone) available to the cells and tissues.

This test does not require fasting. Take your medications as prescribed. However, do not take your supplements on the day of the test.

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.