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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

    • I have a good experience with orange health labs. The samples gets collected and the reports are always sent on time. I am happy with the services provided and hope they continue the same future.
      Amita Abhilipsa7 Jan 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
    • Best service I have ever seen.. Highly recommendable.Appreciate their patience while collecting samples
      Kavya S16 Feb 2024 • Bangalore
      5.0
    • Giving 5 stars just for that customer care representative. I was super angry on the delay and he took complete responsibility. He waited and coordinated with me for 1-1.5 hours to get the things done. His name is Vijay. Giving 5 stars, just because of him. Orange Labs. this 5 stars is just for the way he handled the things and took responsibility. Delayed reports. No one took responsibility except one person. Thanks to him.
      Manikandan Ramanathan5 Feb 2024 • 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
    • Excellent scheduling, seamless booking, professional trained staff and quality equipments. executive coming in rain coat in high rain-on time, perfectly working tracking, timely results, periodic status updates you are outstanding, my heartfelt gratitude to orange, you are a trendsetter in this noble service field. I request you to continue the quality focus not only when you are a young company but in the long term as well. your assured success will be a role model to others and it is very telling of the mindset of those who are running this company and the culture they have incorporated, Thank you and God bless you all!
      Rookie Rockie25 Sep 2023 • Bangalore
      5.0
    • It was very convenient as the slot was available after 7 pm and the updates given on the processing of the tests taken. The reports were quick as promised Hope the same service continues
      Shweta Kadur2 Oct 2023 • Bangalore
      5.0
    • Hi all....it's a really nice hussle free experience for my order ,the sample collection persons were humble and nice ,in future too I like to use Orange for our orders and price wise its reasonable . Thanks
      Sanjay Karavinakopp15 Oct 2023 • Bangalore
      5.0
    • It was a great experience with orange health labs. Have done health check with them and it was too good.starting from the technician to getting the report everything was seamless. I am quite happy with the service
      Raja Raman Naik19 Dec 2023 • Bangalore
      5.0
    • Prompt and trustworthy service. I was bedridden and got my test done at home and results were out within 3-4 hours. Highly recommend
      Fahad Salim4 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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