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    What Is a Free T3 (FT3) Test?

    The Free T3 (FT3) test measures the levels of unbound triiodothyronine (T3) hormone in the blood. T3 is produced by the thyroid gland and plays a vital role in regulating metabolism, heart rate, and body temperature.

    This test evaluates the active form of T3 that is not bound to proteins and is freely available to tissues. FT3 is especially useful for diagnosing hyperthyroidism and monitoring thyroid treatment.

    Orange Health Labs offers convenient at-home sample collection for Free T3 testing in major cities, with fast and reliable report delivery.

    Free T3 (FT3) Test Price

    The FT3 (Free T3) test cost is around Rs. 380/- The test price usually includes home sample collection within 60 mins of booking. FT3 (Free T3) test price may also vary according to the city the test is booked,

    Free T3 (FT3) Test Cost Across India

    S.NoTest In CityPrice
    1T3 - Free Test in Bangalore₹ 380
    2T3 - Free Test in Gurgaon₹ 380
    3T3 - Free Test in Delhi₹ 380
    4T3 - Free Test in Hyderabad₹ 380
    5T3 - Free Test in Mumbai₹ 380
    6T3 - Free Test in Noida₹ 380
    7T3 - Free Test in Pune₹ 380

    Free T3 (FT3) Test Preparation

    No special preparation or fasting is required for the FT3 (Free T3) test.

    Who Should Get This Test?

    • Individuals with suspected thyroid dysfunction

    • People with abnormal TSH or FT4 results

    • Patients being monitored for hyperthyroidism treatment

    During the Test:

    • A phlebotomist will draw blood from a vein in your arm

    • The collection process takes under 5 minutes

    After the Test:

    • Mild bruising may occur

    • Results will be available within 6 hours via email or WhatsApp

    Why Take a Free T3 (FT3) Test?

    A Free T3 test may be recommended for individuals showing symptoms of hyperthyroidism or when TSH levels are abnormal.

    Common symptoms indicating the need for this test include:

    • Rapid heartbeat or palpitations

    • Anxiety and difficulty sleeping

    • Weight loss without clear cause

    • Hand tremors or weakness

    • Heat sensitivity and excessive sweating

    • Visual disturbances or bulging eyes

    • Diarrhea in some cases

    The FT3 test is often ordered alongside TSH and FT4 as part of a full thyroid function panel.

    Free T3 (FT3) Test Results & Interpretation

    The Free T3 test determines whether T3 levels are within the normal range, which helps identify thyroid disorders.

    Normal Range:

    • Free T3: 4.26–8.10 pmol/L

    Results Interpretation:

    • Elevated FT3 suggests hyperthyroidism, often accompanied by suppressed TSH levels

    • Low FT3 may be linked to hypothyroidism or other non-thyroidal illnesses

    • FT3 is used when FT4 and TSH values are borderline or inconclusive

    Consult your doctor to evaluate results in the context of clinical symptoms and treatment plans.

    Free T3 Test Overview

    Test NameT3 - Free Test
    PriceThe T3 - Free Test price is ₹ 380.
    Also Known AsTriiodothyronine test, T3 test, thyroid function test, FT3, Thyroid function test, Total triiodothyronine, Free triiodothyronine, TT3, Radioimmunoassay FT3 1,2
    PurposeTo measure Level of triiodothyronine (T3) hormone
    Pre-test InformationFasting is not required for a T3 - 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 T3 - Free Test
    4.9
    Google Rating

    Highest Rated Diagnostic Lab

    • 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
    • Good experience everytime except one where phlebotomist didn't prick correctly. My wife had much pain even after few days and it looked like some clot had happened. But it was one in almost 20 visits. I would still recommend. One suggestion to Orange would be to keep Lithium tests within a day so we could get test results faster
      ankit kaul9 Dec 2023 • Bangalore
      5.0
    • They provide a very good service. The individual that comes for taking the samples are very professional. The reports are also genuine. They provide great discounts also which u won't get in any other labs..
      Sana Sheikh5 Jan 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
    • Technicians are very prompt. Wide variety of tests offered. Results are quick (e.g. FBT results in 6 hrs), with all reports available centrally in an app. And, the smart uniforms of their technicians, )who are also skilled and courteous) brings a degree of professionalism unlike other service providers.
      Mahesh Khambadkone14 Oct 2023 • Bangalore
      5.0
    • This is my 2nd time. They are charging very reasonable price. Sample collection happened in time without any inconveniences and in very hygienic way. Got the final report before promised time. Reports were getting updated as soon as the tests were getting completed and I was getting updates over email and as well as whatsapp and finally the final report came. The reports look accurate. I had a very good experience again.
      Swarup Pattanayak29 Sep 2023 • 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
    • 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 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
    • Amazing staff and results on time if not even before time. Highly recommend. Not once have I been disappointed by the orange health labs. It’s my goto for any kind of blood tests.
      Swetha M15 Oct 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. Bound and Unbound T3. [Internet]. Rochester Medical Center. [cited 2024 Nov 05].  Available from:  https://www.urmc.rochester.edu/encyclopedia/content.aspx?ContentTypeID=167&ContentID=t3_free_and_bound_blood
    2. T3 tests. [Internet]. Medline Plus. [cited 2024 Nov 05]. Available from:  Available from:  https://medlineplus.gov/lab-tests/triiodothyronine-t3-tests/
    3. Free T3 test. [Internet]. Pathology Tests Explained. [cited 2024 Nov 05].  Available from:  https://pathologytestsexplained.org.au/ptests-pro.php?q=Free+T3+%28triiodothyronine%29
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