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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

    • Well tuned procedure to book the blood test.moderately price d,sample collection at your home by professionally sound staff , painless ensuring perfect hygiene, report with in 6 hours.and follow up in offer ,thanks for the excellent service. Ji
      SID Peter19 Jan 2024 • Bangalore
      5.0
    • Booked home collection. Person was on time to collect the sample, was well groomed and very polite while being thorough professional. Final report was received within few hours on WhatsAppand email. Periodic Updates received from lab was very helpful. Overall a very good experience
      Giridhar Kudinoor11 Feb 2024 • Bangalore
      5.0
    • 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
    • Extremely quick appointments for home tests & timely reports too. Medical representative was on time and neat work.
      Aditya Prakash14 Feb 2024 • Bangalore
      5.0
    • Very timely, professional and super fast report delivery. Cost wise as well they are very competitive. I rarely give five stars.
      Vijay Kumar Venkatachalam14 Oct 2023 • Bangalore
      5.0
    • The best experience I have had in the last two weeks with multiple tests booked for different family members. From the moment I contacted them till the receipt of the results and re-bookings for follow up tests, everything was fantastic. Pls note the sample taking covered early morning visit, for a patient aged 90+!! Initially I had made the big mistake of contacting another big-noise, big-ad spending Lab service provider based on a Google search of a particular test resulting in its top of page listing, and was utterly disgusted with that Labs' service. I would fully recommend Orange for anyone - possibly any test, any age patient. Thank you Orange Labs.
      Agnel Pereira6 Aug 2023 • Bangalore
      5.0
    • Free Home Collection, Reasonable Rates, Digital Report within 4-6 hours. Everything perfect. Full body check rates are considerably on par with other players like Anand Diagnostics, Thyrocare, 1Mg etc.
      Anoop Kumar Pandey1 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
    • Quick and easy to book. Got my report very quickly. Very reliable, convenient and fast service.
      neeraj awasthi5 Jan 2024 • Bangalore
      5.0
    • Punctual. Technician is polite, courteous and efficient. Needle pricking is painless and results of the tests are given very fast. I am fully impressed. Me and 4 more family members have been availing Orange services for the past two years. Excellent service.
      Chivukula Baskar17 Feb 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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