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    Homefree t4 test
    T4 - Free₹790₹50037% off
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    What Is a Free T4 (FT4) Test?

    The Free T4 (FT4) test measures the level of unbound thyroxine (T4) hormone in the blood. T4 is produced by the thyroid gland and plays a vital role in regulating metabolism and growth.

    This test specifically evaluates the free (biologically active) form of thyroxine, which is not bound to proteins and can directly affect body cells. It helps in diagnosing thyroid disorders such as hypothyroidism and hyperthyroidism, and in monitoring treatment effectiveness in patients with known thyroid conditions.

    Orange Health Labs provides convenient at-home sample collection for Free T4 tests across multiple cities, with rapid report delivery.

    Free T4 (FT4) Test Price

    The cost of the Free T4 test is generally around ₹350, though it may vary depending on the city where the order is placed. Prices include home collection.

    Free T4 Test Cost Across India

    S.NoTest In CityPrice
    1T4 - Free Test in Bangalore₹ 500
    2T4 - Free Test in Gurgaon₹ 400
    3T4 - Free Test in Delhi₹ 400
    4T4 - Free Test in Hyderabad₹ 690
    5T4 - Free Test in Mumbai₹ 410
    6T4 - Free Test in Noida₹ 400
    7T4 - Free Test in Pune₹ 410

    Free T4 (FT4) Test Preparation

    No special preparation is needed for the Free T4 test. Fasting is not required.

    Who Should Get This Test?

    • Individuals with symptoms of thyroid dysfunction

    • Patients with abnormal TSH results

    • Those on thyroid hormone therapy

    • Pregnant women with thyroid conditions

    During the Test:

    A healthcare professional will draw a blood sample from a vein in your arm The collection process typically takes less than 5 minutes

    After the Test:

    • Mild bruising or discomfort may occur

    • Samples are sent to the lab, and results are usually available within 6 hours

    Why Take a Free T4 (FT4) Test?

    Your doctor may recommend a Free T4 (FT4) test if you show signs of an underactive or overactive thyroid or have abnormal TSH levels.

    Signs of Hyperthyroidism (Overactive Thyroid):

    • Rapid heartbeat

    • Anxiety and insomnia

    • Weight loss

    • Tremors or shakiness

    • Heat sensitivity and excessive sweating

    • Visual disturbances or bulging eyes

    • Menstrual irregularities

    Signs of Hypothyroidism (Underactive Thyroid):

    • Weight gain

    • Fatigue

    • Cold intolerance

    • Constipation and dry skin

    • Hair thinning or loss

    • Puffy skin

    • Irregular periods

    The FT4 test is also used in pregnancy and to monitor ongoing thyroid treatment.

    Free T4 (FT4) Test Results & Interpretation

    Free T4 test results help determine thyroid function and guide diagnosis when interpreted with other tests such as TSH.

    Normal Reference Range:

    Free T4 : 0.78–2.19 ng/dL

    Interpretation Guide:

    • High FT4: May indicate hyperthyroidism (overactive thyroid), often due to Graves' disease or thyroiditis

    • Low FT4: May indicate hypothyroidism (underactive thyroid), often linked to Hashimoto's thyroiditis or pituitary dysfunction

    FT4 levels should always be interpreted in conjunction with TSH and clinical symptoms.

    Additional testing may include:

    • Thyroid Function Test

    • TSH (Thyroid Stimulating Hormone)

    • TPO (Thyroid Peroxidase Antibody)

    Free T4 Test Overview

    Test NameT4 - Free Test
    PriceThe T4 - Free Test price is ₹ 500.
    Also Known AsFree Thyroxine test, Free T4 concentration, Free T4 index (FTI)
    PurposeTo measure the levels of free thyroxine (T4) hormone.
    Pre-test InformationFasting is not required for a T4 - Free Test
    Report DeliveryGet reports within 3 hours.
    FrequencyAs prescribed by your doctor.
    Home TestingYes, home blood sample collection in 60 minutes from booking.
    Sample RequiredA blood sample is required for a T4 - Free Test
    4.9
    Google Rating

    Highest Rated Diagnostic Lab

    • Experience with orange health was satisfactory and hassle-free. First I had booked for fasting sugar test and glucose level. But I wanted HBA1c test also to be done. So when the captain came into collect the sample on the spot i booked a new test and cancellEd glucose test. In an hour i got a confirmation call for cancellation of the test and received the refund by evening. Good experience
      Manal Sultana12 Sep 2023 • Bangalore
      5.0
    • My experience with Orange Helth Labs has been good so far. They keep up the time , for collecting the sample, analysing and in giving the reports. It's great help, especially for those who can't move out from their homes for getting the samples analysed. Thier charges for testing is also are comparable to any good labs.
      Ramesh Varier16 Feb 2024 • Bangalore
      5.0
    • Very nice experience. Sample collection was done at door steps at our own convenient time. Report was shared on time too. I would recommend to give it a try. It is also cheaper as compared to other labs.
      AJAY KUMAR30 Aug 2023 • Bangalore
      5.0
    • My experience with Orange labs have been excellent so far. Have relied on their home visit for regular blood tests given that it is a case of dengue, and close monitoring of the blood count is essential. They are prompt as promised and the results too are available within committed time lines. As to accuracy of results, I rely on the lab certifications to give me confidence. Would have wanted a voice interface ( a number to call ) for a first time experience, and an ability to order for quicker reports (2 hours) for a differential charge. For the service delivered as published, it is a 5-star
      Binesh Nair16 Jul 2023 • Bangalore
      5.0
    • My interaction with Orange Health Labs has been excellent. Very quick procedure. The samples were collected at the appointed time (6 AM) by a very professional agent who dressed neatly and took all the necessary safety procedures. The results were sent by midday as promised. I want to thank the staff for their fantastic job.
      Raja Srinivasa Reddy Narahari16 Feb 2024 • Bangalore
      5.0
    • I rate 5 starts for technicians cleanliness n hygiene..all tests cost is also reasonable as compared to others👍🏻😊 satisfied with orange labs
      Ayesha Nasreen11 Feb 2024 • Bangalore
      5.0
    • Good experience everytime except one where phlebotomist didn't prick correctly. My wife had much pain even after few days and it looked like some clot had happened. But it was one in almost 20 visits. I would still recommend. One suggestion to Orange would be to keep Lithium tests within a day so we could get test results faster
      ankit kaul9 Dec 2023 • Bangalore
      5.0
    • Had a great experience. The professional who came to talk the blood was very quick and the process was barely painful. Results could have come a lil quicker. Mine took almost 10 hours. But apart from that, had a pretty positive experience.
      Parth Sharma8 Sep 2023 • Bangalore
      5.0
    • I got the tests done with reasonable price. A person stepped in by 6 30 AM to collect the blood sample.Really I thank Dr Lahari for referring Orange Health Labs.
      Naga Sudheer Madduru9 Dec 2023 • Bangalore
      5.0
    • Very professional approach.. right from order booking to sample collection and report generation, real time updates provided. Highly recommended
      Taxal Shenai20 Jan 2024 • Bangalore
      5.0

    Payment & Refund Policy

    • We do not accept cash payments
    • All modes of online payment are accepted
    • Refunds will be credited back to the source of payment within 5-7 working days of order cancellation.

    References

    1. T4 (thyroxine) Test. Cleveland Clinic. 2022  Available from:  https://my.clevelandclinic.org/health/diagnostics/24235-thyroxine-t4-test
    2. Thyroxine (T4) Test [Internet]. Medlineplus.gov. 2022  Available from:  https://medlineplus.gov/lab-tests/thyroxine-t4-test/
    3. Free T4 - Health Encyclopedia - University of Rochester Medical Center [Internet].  Available from:  https://www.urmc.rochester.edu/encyclopedia/content.aspx?contenttypeid=167&contentid=free_t4_thyroxine
    4. Endocrine Society. Thyroid and Parathyroid Hormones [Internet].  Available from:  https://www.endocrine.org/patient-engagement/endocrine-library/hormones-and-endocrine-function/thyroid-and-parathyroid-hormones
    5. Free T4 test Information | Mount Sinai - New York [Internet].  Available from:  https://www.mountsinai.org/health-library/tests/free-t4-test
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