Thyroid Profile Free (FT3, FT4 & TSH) near me in Lucknow
Understanding Thyroid Profile Free (FT3, FT4 & TSH) in Lucknow
What is Thyroid Profile Free (FT3, FT4 & TSH) in Lucknow?
The Thyroid Profile Free (FT3, FT4 & TSH) is a group of blood tests that assesses the health of your thyroid gland and aids in diagnosing and managing thyroid disorders. It is available at an affordable price in Lucknow with Tata 1mg labs. This profile measures the amount of free form of thyroid hormones in the blood, namely thyroid stimulating hormone (TSH), thyroxine (T4)- free, and triiodothyronine (T3)- free.
Your doctor may suggest this profile when you have symptoms suggestive of a thyroid disorder, such as tiredness, mood swings, depression, muscle pain, nervousness, or anxiety. The test results, along with your symptoms, will allow the doctor to identify and diagnose certain diseases, such as hyper or hypothyroidism, and also manage the treatment for these diseases.
Fasting is not required to undertake the Thyroid Profile Free (FT3, FT4 & TSH). You may eat and drink as per your daily routine. On the day of the test, individuals on thyroid medications should take them at the time and dosage prescribed by their doctors.
What does Thyroid Profile Free (FT3, FT4 & TSH) measure?
Contains 3 testsThyroxine (T4) and Triiodothyronine (T3) are thyroid hormones that help regulate metabolism and energy levels. On the other hand, the pituitary gland produces thyroid-stimulating hormone (TSH) and stimulates the thyroid gland to produce T3 and T4 hormones. T3 and T4 circulate in the blood in two forms: bound (attached to proteins) and free (does not attach to any protein). The Thyroid Profile Free (FT3, FT4 & TSH) measures the free or active form of these hormones.
The serum levels of the thyroid hormones and TSH have an inverse relationship, i.e., low T4 and T3 (as observed in hypothyroidism) and high T4 and T3 (as seen in hyperthyroidism) levels are associated with high and low TSH levels, respectively.
TSH (Thyroid Stimulating Hormone) Ultrasensitive
The TSH (Thyroid Stimulating Hormone) Ultrasensitive test measures the levels of TSH hormone in the blood. TSH is produced by the pituitary gland located in the brain. Its function is to stimulate and regulate the functioning of the thyroid gland. It signals the thyroid gland to increase or decrease the production of thyroid hormones T3 and T4 (essential for regulating our body’s metabolism, temperature, heart rate, and growth) when their levels are low or high, respectively. Therefore, when the levels of T3 & T4 decrease, the pituitary gland is stimulated to release TSH. This high TSH level, in turn, stimulates the thyroid gland to release more thyroid hormones (T3 & T4); the vice-versa happens when the levels of thyroid hormones increase.
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Thyroxine - Free
The Thyroxine - Free test measures the free form of thyroxine (T4) hormone made by the thyroid gland. T4 hormone exists in the blood in two forms: bound (attached to proteins) and free (not attached to proteins). Most of the T4 hormone circulating in the blood is bound to proteins and only a small part is free. A delicate balance of bound and free T4 should be maintained to ensure the proper functioning of the body.
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Triiodothyronine Free
The Triiodothyronine Free test measures the levels of free triiodothyronine (T3), a hormone produced by the thyroid gland. T3 hormone plays a vital role in regulating the body's metabolism, energy levels, and growth & development. It exists in the blood in two forms: free T3 and bound T3. Only a small portion of T3 is free (not bound to proteins) and can be utilized by the body’s tissues. In contrast, more than 99% of T3 is bound to proteins, such as albumin and thyroid-binding globulin (TBG), preventing it from entering the tissues. The body balances bound and free T3 to ensure proper functioning.
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