四碘甲狀腺素 (T4) 游離型四碘甲狀腺素 (Free T4)
Thyroxine (T4) & Free Thyroxine (Free T4)
*What is Thyroxine (T4) & Free Thyroxine (Free T4)?
Thyroxine (T4) is one of the main hormones secreted by the thyroid gland, playing a crucial role in metabolism, energy consumption, and growth and development. Free thyroxine (Free T4) refers to the biologically active form of T4 that is not bound to proteins in the blood.
*Normal Reference Range:
Thyroxine (T4): 4.87–11.72 μg/dL
Free Thyroxine (Free T4): 0.7–1.48 ng/dL
*Risks of Abnormal Thyroxine Levels
-High Thyroxine Levels (Hyperthyroidism):
May cause palpitations, weight loss, anxiety, hand tremors, and other symptoms.
Common causes include Graves' disease or thyroid tumors.
-Low Thyroxine Levels (Hypothyroidism):
May lead to fatigue, weight gain, cold intolerance, constipation, and other symptoms.
Often associated with Hashimoto’s thyroiditis or thyroid inflammation.
*How to Maintain Healthy Thyroid Function?
-Regular Thyroid Function Testing:
Especially important for individuals with a family history of thyroid disease or those experiencing related symptoms.
-Balanced Diet:
Adequate iodine intake and other essential vitamins and minerals help support thyroid health.
*Conclusion
Thyroxine (T4) and Free Thyroxine (Free T4) are essential indicators for evaluating thyroid function. Abnormal T4 levels can significantly impact metabolism and overall health. Regular thyroid function testing and maintaining a balanced diet are recommended to ensure optimal thyroid health.
*What is Thyroxine (T4) & Free Thyroxine (Free T4)?
Thyroxine (T4) is one of the main hormones secreted by the thyroid gland, playing a crucial role in metabolism, energy consumption, and growth and development. Free thyroxine (Free T4) refers to the biologically active form of T4 that is not bound to proteins in the blood.
*Normal Reference Range:
Thyroxine (T4): 4.87–11.72 μg/dL
Free Thyroxine (Free T4): 0.7–1.48 ng/dL
*Risks of Abnormal Thyroxine Levels
-High Thyroxine Levels (Hyperthyroidism):
May cause palpitations, weight loss, anxiety, hand tremors, and other symptoms.
Common causes include Graves' disease or thyroid tumors.
-Low Thyroxine Levels (Hypothyroidism):
May lead to fatigue, weight gain, cold intolerance, constipation, and other symptoms.
Often associated with Hashimoto’s thyroiditis or thyroid inflammation.
*How to Maintain Healthy Thyroid Function?
-Regular Thyroid Function Testing:
Especially important for individuals with a family history of thyroid disease or those experiencing related symptoms.
-Balanced Diet:
Adequate iodine intake and other essential vitamins and minerals help support thyroid health.
*Conclusion
Thyroxine (T4) and Free Thyroxine (Free T4) are essential indicators for evaluating thyroid function. Abnormal T4 levels can significantly impact metabolism and overall health. Regular thyroid function testing and maintaining a balanced diet are recommended to ensure optimal thyroid health.