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T4 Free & TSH-Ultrasensitive

T4 Free & TSH-Ultrasensitive near me in Navi Mumbai

Also referred as
Free Thyroxine & Thyrotropin
2,393+ booked recently
For men & women
Earliest reports in
15 hours
Contains
2 tests
Know more about this test

The T4 Free & TSH-Ultrasensitive test is a specialized test tailored to measure the amounts of free form of thyroxine (FT4) and thyroid stimulating hormone (TSH) present in the blood. This test helps evaluate how well your thyroid gland works and is available at an affordable price in Navi Mumbai 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 T4 Free & TSH-Ultrasensitive 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 T4 and TSH, 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 T4 Free & TSH-Ultrasensitive

Thyroid-stimulating hormone (TSH), also known as thyrotropin, is produced by the pituitary gland present in the brain. TSH stimulates the thyroid gland to release thyroid hormones triiodothyronine (T3) and thyroxine (T4). Together, TSH, T3 & T4 hormones play a vital role in controlling how your body uses and stores energy and maintaining body weight and temperature.

T3 and T4 hormones exist in the blood in two forms: bound (attached to transport proteins) and free (not attached to proteins and can enter and affect the body tissues). The T4 Free & TSH-Ultrasensitive test measures the free form of T4 (FT4), a more accurate indicator of thyroid gland function than the bound form T4.

Your doctor may advise the T4 Free & TSH-Ultrasensitive test if you show symptoms suggestive of hyperthyroidism, such as increased appetite, weight loss, sweating, anxiety, tremors, etc., or hypothyroidism, such as fatigue, weight gain, dry skin, constipation, etc. This test is also recommended for women during pregnancy to check if they have adequate amounts of thyroid hormones, as these hormones are necessary for the healthy development of babies.

Abnormal levels of FT4 or TSH may indicate thyroid dysfunction (Hyperthyroidism or hypothyroidism), with high or low levels suggesting different types of thyroid disorders, such as goiter, Graves’ disease, or Hashimoto’s thyroiditis.

No special preparations are needed for this test. Usually, you do not need to stop taking your thyroid medication before taking this test. However, inform your doctor about all your medicines, as some can affect thyroid function.

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, make recommendations for 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 T4 Free & TSH-Ultrasensitive measure?

Contains 2 tests

The T4 Free & TSH-Ultrasensitive test measures the free form of thyroxine (FT4) hormone along with TSH to analyze how well your thyroid gland is functioning. This test has the advantage of getting a more precise analysis of your thyroid function and early detection of potential thyroid problems, thereby facilitating better treatment outcomes.

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 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 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); vice versa happens when the levels of thyroid hormones increase.

Know more about TSH (Thyroid Stimulating Hormone) Ultrasensitive

FAQs related to T4 Free & TSH-Ultrasensitive in Navi Mumbai

The free T4 and TSH test is done to check for hyperthyroidism or hypothyroidism when you are suspected of symptoms like weight gain/loss, fatigue, dry skin, hair thinning, slow heart rate, muscle weakness, anxiety, trouble sleeping, or frequent bowel movement.
No, fasting is not needed before taking this test. However, your doctor will guide you if any special preparation is required.
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.
There is usually no risk associated with this test. However, some people may feel a slight sting while the needle is pricked and may experience some bleeding that is normal and usually not bothersome. Some people may rarely experience slight swelling or bruising at the site of the needle prick. Applying ice 3-4 times daily for about a week may help reduce swelling and bruising. If it does not get better, consult your doctor.
Yes, you can book the T4 Free & TSH-Ultrasensitive test in Navi Mumbai 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 T4 Free & TSH-Ultrasensitive test is readily available in Navi Mumbai. Tata 1mg Labs allows you to choose a date and time that suits your schedule for sample collection.
If you want to schedule the T4 Free & TSH-Ultrasensitive test with Tata 1mg Labs in Navi Mumbai, 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 Navi Mumbai. The T4 Free & TSH-Ultrasensitive test is available at an affordable price of Rs. 409.
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 T4 Free & TSH-Ultrasensitive test in Navi Mumbai are often provided in 15 hours.
Content created by
Written by:
Dr. Lipika Khurana
BDS, PGDHHM
Reviewed by:
Dr. Swati Gupta (Anand)
MBBS, MD Lab Medicine
Want to know moreRead our editorial policy
Last Updated6th Oct 2025

T4 Free & TSH-Ultrasensitive test price for other cities

Price inKolkataRs. 439
Price inBangaloreRs. 439
Price inGurgaonRs. 669
Price inNew DelhiRs. 669
Price inHyderabadRs. 379

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Contains 2 tests
Thyroxine - Free (FT4)
TSH (Thyroid Stimulating Hormone) Ultrasensitive