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FT3 & FT4 (Free T3 & Free T4)

FT3 & FT4 (Free T3 & Free T4) near me in Panchkula

Also referred as
Free T3 & Free T4
3,064+ booked recently
For men & women
Earliest reports in
48 hours
Contains
2 tests
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The FT3 & FT4 (Free T3 & Free T4) test is a specialized test tailored to measure the amounts of free form of thyroxine (FT4) and thyroxine (FT4) present in the blood. This test helps evaluate how well your thyroid gland works and is available at an affordable price in Panchkula with Tata 1mg Labs. This test aids in diagnosing and monitoring thyroid disorders like goiter, Graves’ disease, or Hashimoto’s thyroiditis, which result from either an overactive (hyperthyroidism) or underactive (hypothyroidism) thyroid gland. Your doctor may suggest the FT3 & FT4 (Free T3 & Free T4) test when you have symptoms suggestive of a thyroid disorder, such as tiredness, mood swings, depression, muscle pain, nervousness, or anxiety.

This test is also recommended for pregnant women to ensure adequate levels of FT4 and FT4, both of which are crucial for the healthy development of babies and to prevent pregnancy complications. No special preparations are required for this test, and typically, there is no need to stop thyroid medication beforehand. However, inform your doctor about all medications you are taking, as some may impact thyroid function.

 

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Understanding FT3 & FT4 (Free T3 & Free T4)

The thyroid gland is a butterfly-shaped organ in the neck that produces hormones like thyroxine (T4) and triiodothyronine (T3), which are responsible for regulating metabolism and other bodily functions. The production and release of these hormones are controlled by the pituitary gland's thyroid-stimulating hormone (TSH). FT4 and FT3 represent the free or unbound, active forms of thyroxine and triiodothyronine. It reflects the amount of available thyroid hormone circulating in the blood.

An FT3 & FT4 (Free T3 & Free T4) test is used to assess how well your thyroid gland is working and aid in the diagnosis and management of thyroid disorders, such as an overactive thyroid gland (hyperthyroidism) or an underactive thyroid gland (hypothyroidism). Your doctor may advise this test if you show symptoms suggestive of hyperthyroidism, such as weight loss, nervousness, irritability, increased sweating, and rapid heartbeat, or hypothyroidism, such as weight gain, fatigue, sensitivity to cold, constipation, and dry skin. It is also important for pregnant women to have healthy amounts of thyroid hormones to ensure the healthy development of their babies.

No special preparations are needed for this test. Usually, you do not need to stop taking your thyroid medication before taking this test. However, let your doctor know about all your medications, as some can affect thyroid function. Biotin (Vitamin B7) is a commonly taken over-the-counter supplement that can lead to some aberrancy in your test results even when the values are normal. Therefore, avoid taking biotin two days before an FT3 & FT4 test.

Test result ranges are approximate and may differ slightly between labs depending on the methodology and laboratory guidelines. Talk to your doctor about your specific results. The test results will help them determine your medical condition, recommend lifestyle modifications such as diet and exercise, evaluate whether or not medication will be required to manage your condition and formulate an overall treatment plan.

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What does FT3 & FT4 (Free T3 & Free T4) measure?

Contains 2 tests

An FT3 & FT4 (Free T3 & Free T4) test measures the free form of triiodothyronine (FT3) and thyroxine (FT4) hormones made by the thyroid gland. These hormones exist in the blood in two forms: bound (attached to proteins) and free (not attached to proteins). Most of the T3 and T4 hormones circulating in the blood are bound to proteins and only a small part circulates freely and constitutes the physiologically active form. The body maintains a delicate balance of bound and free T3 as well as T4 to ensure proper functioning. Measuring free forms of thyroid hormones (FT3 and FT4) gives a better understanding of thyroid function than the bound forms as they are independent of changes in the concentration and the binding properties of the thyroid hormone binding proteins.

The Thyroxine - Free (FT4) 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.

Know more about Thyroxine - Free (FT4)

The Triiodothyronine - Free (FT3) 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. 

Know more about Triiodothyronine - Free (FT3)

FAQs related to FT3 & FT4 (Free T3 & Free T4) in Panchkula

The Free T3 & Free T4 test is done to check for hyperthyroidism or hypothyroidism when you show symptoms like weight gain/loss, fatigue, dry skin, hair thinning, slow heart rate, muscle weakness, anxiety, trouble sleeping, or frequent bowel movement.
Yes, you can take the Free T3 & Free T4 test during pregnancy. This test is usually recommended along with some other tests during pregnancy to measure the levels of thyroid hormones as their deranged levels can complicate pregnancy.
A phlebotomist (a trained professional to perform blood draws) will clean your skin using an antiseptic alcohol cotton swab or wipe and take blood samples from your vein using a needle. The blood sample will be stored safely and transported to the laboratory for analysis.
No, fasting is not needed before taking this test. However, your doctor will guide you if any special preparation is required.
Yes, you can book the Free T3 & Free T4 test in Panchkula near you with Tata 1mg Labs. The test can be booked easily, is affordable, and comes with an easy-to-understand report.
Yes, home sample collection for the Free T3 & Free T4 test is readily available in Panchkula. Tata 1mg Labs allows you to choose a date and time that suits your schedule for sample collection.
If you want to schedule the Free T3 & Free T4 test with Tata 1mg Labs in Panchkula, the procedure is fairly easy and hassle-free. Follow these steps to book a test: 1). Visit the Lab Tests section on the Tata 1mg website. 2). Add the test you want in the cart. 3). Pick a time and date slot according to your convenience; however, do consider the necessary prerequisites while scheduling a test. 4). You will receive a notification with all the details once the test is scheduled.
Tata 1mg Labs is a pocket-friendly platform for booking lab tests in Panchkula. The Free T3 & Free T4 test is available at an affordable price of Rs. 319.
The e-report of your Free T3 & Free T4 test can be found on the Tata 1mg app in downloadable PDF form. This allows you to access your test results at convenience and securely share them with your healthcare provider for further consultation and guidance regarding your overall health. You can also opt for a hard copy of the reports at a minimal price.
We at Tata 1mg Labs recognize the value of prompt results. We strive to deliver test results with quick turnaround times so you can receive the information promptly. The reports of the Free T3 & Free T4 test in Panchkula are often provided in 48 hours.
Content created by
Written by:
Dr. Lipika Khurana
PGDHHM, BDS
Reviewed by:
Dr. Swati Gupta (Anand)
MD Lab Medicine, MBBS
Want to know moreRead our editorial policy
Last Updated6th Oct 2025

FT3 & FT4 (Free T3 & Free T4) test price for other cities

Price inBangaloreRs. 569
Price inNew DelhiRs. 709
Price inMumbaiRs. 709
Price inHyderabadRs. 319
Price inKolkataRs. 699

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Contains 2 tests
Thyroxine - Free (FT4)
Triiodothyronine - Free (FT3)