
Thyroxine - Total (T4) near me in New Delhi










The Thyroxine - Total (T4) test measures the amount of both bound and free forms of thyroxine (T4), a thyroid hormone essential for regulating the body's metabolism, growth, energy production, etc. This test is available at an affordable price in New Delhi with Tata 1mg labs. This test helps assess thyroid function, diagnose thyroid disorders such as hyperthyroidism (overactive thyroid) or hypothyroidism (underactive thyroid), and monitor treatment effectiveness.
Your doctor may suggest the Thyroxine - Total (T4) test if you exhibit symptoms suggestive of a thyroid dysfunction such as weakness, unexplained weight loss or gain, irregular menstrual cycle, changes in appetite, mood swings, sweating, etc. The Thyroxine - Total (T4) test is done in combination with total T3 and TSH tests as part of a thyroid profile total test for more comprehensive evaluation of your thyroid gland.
No fasting is required for this test. You can eat and drink normally as per your routine. However, if you are taking thyroid medication, you should continue to take it as prescribed by your doctor on the day of the test.








What does Thyroxine - Total (T4) measure?
The Thyroxine - Total (T4) test measures both the bound and unbound/free form of thyroxine (T4) hormone in the blood. T4 exists in the blood in two forms: bound (attached to proteins) and free (not attached to proteins). Most of the T4 circulating in the blood is bound to proteins and only a small part is free. It is necessary to maintain a fine balance of these forms to ensure the proper functioning of the body.





FAQs related to Thyroxine - Total (T4) in New Delhi
- Thyroid Function Tests [Internet]. Alexandria, VA: American Thyroid Association; [Accessed 07 Feb. 2023]. Available from:
- University of Rochester Medical Center. Free and Bound Triiodothyronine (Blood) [Internet]. NY. [Accessed 07 Feb. 2023]. Available from:
- British Thyroid Foundation. Thyroid Function Test [Internet]. Scotland: British Thyroid Foundation; 2021 [Accessed 07 Feb. 2023]. Available from:
- Block-Galarza J. Thyroid Function Tests [Internet]. Alexandria, VA: American Thyroid Association. [Accessed 07 Jul. 2023]. Available from:
- National Institute of Diabetes and Digestive and Kidney Diseases. Thyroid Tests [Internet]. National Institute of Health; May 2017 [Accessed 07 Feb. 2023]. Available from:
- Adhimoolam M, Arulmozhi R. Effect of antiepileptic drug therapy on thyroid hormones among adult epileptic patients: An analytical cross-sectional study. J Res Pharm Pract. 2016 Jul-Sep;5(3):171-4. [Accessed 07 Jul. 2023]. Available from:
- Dong BJ. How medications affect thyroid function. West J Med. 2000 Feb;172(2):102-6. [Accessed 09 Feb. 2023]. Available from:
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