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Reverse T3

Item# LC070104

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  • Reverse T3
  • Item Catalog Number: LC070104

Reverse T3 is a non-functioning form of the active hormone triiodothyronine (T3). In the tissues, T4 normally converts to T3. However, other hormones such as cortisol may inhibit this conversion, producing reverse T3 (rT3).

Having high levels of reverse T3 is known as thyroid resistance and produces symptoms of low thyroid function (hypothyroidism). If you suffer from symptoms such as fatigue, weight gain, dry skin or hair loss and your traditional thyroid lab results are inconclusive, you might consider checking your reverse T3 level.

Fasting is not required. 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.