Tri-iodothyronine (T3) Blood Test
Item # LC002188
Measures the total (bound & free) active form of thyroid hormone
Tri-iodothyronine (T3) Blood Test
Item # LC002188
Measures the total (bound & free) active form of thyroid hormone
This test evaluates levels of triiodothyronine (T3), a major thyroid hormone, to assess your thyroid function.
T3 or triiodothyronine is the active form of the thyroid hormone. T3 acts as a metabolic throttle for fueling all of the daily cellular functions. Hypothyroidism is a condition where T3 blood levels are low. This causes cellular dysfunction and metabolic breakdown. Symptoms may include weight gain, constipation, dry skin, and hair loss. Low T3 levels may even lead to the development of chronic diseases such as heart disease and diabetes. Hyperthyroidism is the term for elevated T3 blood levels. Symptoms can include anxiety, insomnia, heart palpitations, and bowel discomfort. Instructions Fasting is not required for this test. Take all medications as prescribed. Note For a more extensive evaluation of thyroid function, Life Extension® offers a Comprehensive Thyroid Panel. |
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.
A clinician's order is required for many tests. Where applicable, an independent clinician will review your test request and determine whether to authorize the test, if appropriate. For additional information, see PWNHealth Terms of Service.
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