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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

    • 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
    • Service provided by Orange Health is excellent. Labs eMedic are very good,friendly and no pain while pricking the needle.
      Saikat Chakraborty16 Feb 2024 • 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
    • 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
    • The person who came to collect my blood sample was very professional. Also, my report was ready within 6 hours as promised by Orange Heath Labs. Keep up the good work! 😊
      Shashi Prabha13 Sep 2023 • Bangalore
      5.0
    • Amazing team members who understands the concerns of their customers and responding them with high priority. Thanks for the very good service.
      Shahul Hameed16 Feb 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
    • Amazing service, they were on time, the representative was polite and very gentle. Thank you for the amazing service!!!
      Julie Sahoo15 Feb 2024 • Bangalore
      5.0
    • It was excellent. The person who came to collect Mr. Surya was very good. And very professional.
      Girija Karthik7 Dec 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

    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 Ā Available from: Ā https://my.clevelandclinic.org/health/diagnostics/24235-thyroxine-t4-test
    2. Thyroxine (T4) Test [Internet]. Medlineplus.gov. 2022 Ā Available from: Ā https://medlineplus.gov/lab-tests/thyroxine-t4-test/
    3. Free T4 - Health Encyclopedia - University of Rochester Medical Center [Internet]. Ā Available from: Ā https://www.urmc.rochester.edu/encyclopedia/content.aspx?contenttypeid=167&contentid=free_t4_thyroxine
    4. Endocrine Society. Thyroid and Parathyroid Hormones [Internet]. Ā Available from: Ā 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]. Ā Available from: Ā https://www.mountsinai.org/health-library/tests/free-t4-test
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