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    Homefree t4 test
    Free T4 (FT4)₹443₹40010% 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
    1Free T4 (FT4) Test in Bangalore₹ 400
    2Free T4 (FT4) Test in Gurgaon₹ 400
    3Free T4 (FT4) Test in Delhi₹ 400
    4Free T4 (FT4) Test in Hyderabad₹ 400
    5Free T4 (FT4) Test in Mumbai₹ 400
    6Free T4 (FT4) Test in Noida₹ 400

    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 NameFree T4 (FT4) Test
    PriceThe Free T4 (FT4) Test price is ₹ 400.
    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 Free T4 (FT4) Test
    Report DeliveryGet reports within 6 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 Free T4 (FT4) Test
    4.9
    Google Rating

    Highest Rated Diagnostic Lab

    • It was excellent. The person who came to collect Mr. Surya was very good. And very professional.
      5.0
    • Amazing service, they were on time, the representative was polite and very gentle. Thank you for the amazing service!!!
      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.
      5.0
    • My experience was great with orange labs , very professional home collection of samples and timely reports and good customer care support too Definitely recommend it
      5.0
    • Very prompt to contact me..easy to use web site ..Follow up calls & appt ,with reminders.Lab tech very courteous,prompt ,all eqpt was opened , after showing me the sealed pckt ..Smooth & painless sample collection .
      5.0
    • Our overall experience was great. The person who came for sample collection was very good and punctual. We received the reports in 6 hours which really amazed me. I would highly recommend them due to their great customer service.
      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.
      5.0
    • 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
      5.0
    • We availed orange labs services for our children recently - quick prompt friendly and professional service offered at home and reports were made available in few hours sooner than the committed time . Would recommend for anyone looking for home lab services and quick results
      5.0
    • My experience with Orange Health Labs has been very good so far. Seamless booking through their app. Home collection staff are very punctual. Reports are received on time. The rates are also very reasonable. Overall, this is a very convenient way to get your tests done sitting at home. I definitely recommend this place to everyone.
      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 3 hours 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