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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

    • It was a good experience with orange.we have done number of times.but this is firsttime for our kid.she didn't have any discomfort or pain while collecting the blood .thanks to the person who came for collection
      viswanadha kumar28 Dec 2023 • Bangalore
      5.0
    • Very Professional behaviour while taking blood samples . The result was on time without any delay . I would recommend and I will also use in future.
      biswanath satpathy22 Jan 2024 • Bangalore
      5.0
    • Orange Health team collected the sample on scheduled time, and received updates at every stage and very cost effective compare to other labs/Hospital. Highly recommend this lab to everyone
      Thiru Karikalan9 Feb 2024 • Bangalore
      5.0
    • They are very professional in their work. Phlebotomist always shows new needle and does his job perfectly. Blood reports are also published quickly.
      Bhaskar Joshi18 Sep 2023 • 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
    • Very good service.I have availed their services multiple times and have recommended to my family members as well. Punctuality, reasonable pricing, early delivery of reports and reliable data (compared the data with other centres) are the features that I like the most. No complaints.
      Oindrila Bhattacharjee29 Dec 2023 • 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
    • Very satisfactory service. Especially Karthik is well experienced in taking blood samples. And reports are delivered very fast. Overall I am happy to use Orange Health Labs and I recommend everyone to use their services.
      Jyothi Jo22 Nov 2023 • Bangalore
      5.0
    • The executive assigned to me was Dhanraj. He was on time and in exact location. He was very professional and humble. He ensured that all the medical kits are new and even showed it to me before using. I would definitely recommend my family and friends for any future tests. Thank you Dhanraj for making sample collection easy and professional.
      Deepak D'silva18 Dec 2023 • Bangalore
      5.0
    • Very Very Prompt Response from all Staff working.Medically Most Advanced & Hygenic Method of Collecting Blood Sample. Most Accurate Analysis. Immediate Response of Results to Help the Patients to follow the Treatment from Experts..Thanks Orange Health Labs.😀
      Arun Kulkarni1 Nov 2023 • 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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