Health Checkup - thyroid-function-test

THYROID FUNCTION TEST

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The Thyroid Profile Total (T3, T4 & TSH) measures the circulating amounts of three key hormones: Total T3 (Total Triiodothyronine): T3 is the most active thyroid hormone and plays a major role in metabolism. The Thyroid Profile Total test measures both the T3 that is bound to proteins and the T3 that is free in the blood. Total T4 (Total Thyroxine): T4 is the primary hormone secreted by the thyroid gland. The Thyroid Profile Total test measures both protein-bound and free T4. It is a good indicator of overall thyroid hormone production. TSH (Thyroid Stimulating Hormone): This hormone, released by the pituitary gland, controls the production of T4 and T3 by the thyroid. It is the best screening test to determine if the thyroid is functioning normally.

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Description

Thyroid Function Test - The thyroid is a small butterfly-shaped gland located in the neck It produces T and T hormones that help regulate the body's metabolism energy and functioning of the vital organs On the other hand the TSH hormone is produced by the pituitary gland This hormone acts...Read more

Sample Type - Blood
Gender - Both
Age Group - Above 5yrs
Report Time - 48 hours

THYROID FUNCTION TEST (3 Tests Included)

Total T3 (Total Triiodothyronine) ▾

T3 is the most active thyroid hormone and plays a major role in metabolism. The Thyroid Profile Total test measures both the T3 that is bound to proteins and the T3 that is free in the blood.

Total T4 (Total Thyroxine) ▾

T4 is the primary hormone secreted by the thyroid gland. The Thyroid Profile Total test measures both protein-bound and free T4. It is a good indicator of overall thyroid hormone production.

TSH (Thyroid Stimulating Hormone) ▾

This hormone, released by the pituitary gland, controls the production of T4 and T3 by the thyroid. It is the best screening test to determine if the thyroid is functioning normally.

Test Requirements ?

Thyroid Function Test - The thyroid is a small, butterfly-shaped gland located in the neck. It produces T3 and T4 hormones that help regulate the body's metabolism, energy, and functioning of the vital organs. On the other hand, the TSH hormone is produced by the pituitary gland. This hormone acts like a messenger and tells the thyroid gland how much thyroid hormones (T3 & T4) it needs to make. An abnormal level of any of these three hormones can signal a thyroid problem, such as an underactive (hypothyroidism) or overactive (hyperthyroidism) gland. The doctor may advise the Thyroid Profile Total (T3, T4 & TSH) test if there are symptoms suggestive of thyroid disorders, such as hypothyroidism (underactive thyroid) and hyperthyroidism (overactive thyroid).Common symptoms of hypothyroidism include weight gain, fatigue, sensitivity to cold, constipation, dry skin, thinning hair, and irregular or heavier-than-usual menstrual periods. On the other hand, hyperthyroidism may cause unexplained weight loss, sensitivity to heat, irritability, mood swings, muscle weakness, hyperactivity, and difficulty sleeping. Doctors also recommend the Thyroid Profile Total (T3, T4 & TSH) for women during pregnancy to check if they have adequate amounts of thyroid hormones. These hormones are important for fetal brain development and pregnancy health. The levels of thyroid hormones (T3 and T4) fluctuate due to changes in a protein called thyroxine-binding globulin (TBG). TBG helps carry thyroid hormones to the right parts of the body. The level of TSH can vary, depending on factors like the time of day it is tested. That is why it's better to test TSH in the daytime for more accurate results. No special preparations are needed for this profile. Usually, you do not need to discontinue taking thyroid medication before getting tested. However, inform your doctor about all the medications being taken, as some of them might affect the test results. Lab test results may vary across laboratories. Interpretation of the test results requires expert guidance. Therefore, do not self-medicate, and talk to the doctor to understand the test results correctly.

Pregnancy Considerations: Doctors also recommend the Thyroid Profile Total (T3, T4 & TSH) for women during pregnancy to check if they have adequate amounts of thyroid hormones. These hormones are important for fetal brain development and pregnancy health.
Medications and Supplements: Regular thyroid medications usually do not need to be stopped—however, all medications should be disclosed to the doctor.

Disclaimer

The contents of this website are for informational purposes only and not intended to be a substitute for professional medical advice, diagnosis, or treatment. Please seek the advice of a physician or other qualified health provider with any questions you may have regarding a medical condition. Do not disregard professional medical advice or delay in seeking it because of something you have read on this website.