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    What is a Free Thyroid Profile Test?

    The Free Thyroid Profile test is a comprehensive blood test that measures the function of your thyroid gland, a small, butterfly-shaped organ at the front of your neck. The two hormones that the thyroid produces are thyroxine (T4) and triiodothyronine (T3). These hormones are found in two significant forms: free forms (free T3 (FT3) and free T4 (FT4)) that can enter tissues directly, and bound forms (T3 and T4) that are attached to proteins and cannot penetrate tissues.

    The Free Thyroid Profile test evaluates the free thyroid hormones (FT3 and FT4) in the blood and the thyroid-stimulating hormone (TSH) from the pituitary gland. TSH oversees the thyroid's production of T3 and T4 hormones, which are essential for various bodily functions, including growth, development, and metabolism. By measuring free thyroid hormones and TSH, this test gives a detailed assessment of thyroid health and helps identify disorders such as hyperthyroidism (overactive thyroid) and hypothyroidism (underactive thyroid).

    In bustling cities like Delhi, prioritising health can be challenging. Therefore, taking a Free Thyroid test in Delhi is vital for the early detection of thyroid issues and for maintaining overall well-being.

    Free Thyroid Profile Test Parameters

    The Free Thyroid Profile test includes three key measurements:

    FT3

    This active form of the T3 hormone that is bound and penetrates tissues directly is measured by this parameter.

    FT4

    The active form of T4 hormone that is unbound and directly penetrates tissues is measured by this parameter. Testing FT4 in addition to TSH levels gives a more accurate overview of the thyroid gland activity.

    TSH and 3rd Generation TSH

    TSH regulates the production of T3 and T4 hormones by the thyroid gland. Low thyroid hormone levels increase TSH production by the pituitary gland to stimulate the thyroid, while high levels reduce TSH production through negative feedback. The 3rd Generation TSH test provides a more precise picture of thyroid function by detecting minute variations in TSH levels.

    These parameters allow doctors to gain valuable insights into thyroid function and accurately identify thyroid disorders.

    Free Thyroid Profile Test Preparation

    Below are a few points you should know to guarantee precise results of a Free Thyroid test at home:

    Prerequisites

    Generally, there are no specific prerequisites like fasting required for a Free Thyroid Profile test. Nevertheless, your doctor might suggest fasting before the test in some cases for confirmation. Please consult with your doctor to find out if fasting is needed for your specific condition.

    Best Time to Get Tested

    Taking the Thyroid test early in the morning is ideal because food consumed later can influence the results. Moreover, it is important to schedule the test consistently at the same time of the day each time you schedule it.

    Who Should Get a Free Thyroid Test

    Those who have symptoms of thyroid problems or a family history of thyroid disorders should think about getting tested.

    Cautions before taking the Free Thyroid Test

    Factors that can affect your Thyroid test results include:

    • The duration between your last thyroid medication dose, particularly if it includes T3, and when your blood is drawn.

    • Medications such as birth control and supplements like biotin.

    • Non-thyroidal illnesses, diet, stress, and sleep patterns.

    Consulting your doctor about these factors before the test is crucial for an accurate diagnosis.

    Why Take a Free Thyroid Profile Test?

    Measuring the levels of free thyroid hormones along with TSH helps identify and monitor thyroid disorders, which can affect your health in diverse ways. Here are a few reasons for undergoing this test:

    • Symptoms of Thyroid Issues

    If you experience weight changes, dry skin, puffy face, brittle hair, sluggishness, joint swelling, irregular heart rate, temperature sensitivity, menstrual irregularities, or depression, thyroid tests are necessary to diagnose hyperthyroidism or hypothyroidism.

    • Pregnancy and Postpartum

    Thyroid levels can vary significantly during and after pregnancy, affecting both mother and baby’s health. Regular testing is essential during these periods.

    • Genetic Predisposition

    A family history of thyroid conditions needs regular screening due to the hereditary risk.

    • Autoimmune Diseases

    People with autoimmune diseases, like type 1 diabetes, have a higher risk of developing thyroid disorders, making regular testing crucial.

    • Treatment Monitoring

    Regular Thyroid Profile tests are vital for those on thyroid treatment to monitor the treatment’s success and make necessary medication adjustments.

    Free Thyroid Profile Test Results & Interpretation

    Properly interpreting Free T3, T4, and TSH test results is vital for a precise assessment of thyroid health. These are the normal ranges for these hormones:

    Test NameReference Range
    Triiodothyronine (T3), Free2.77 - 5.27 pg/mL
    Thyroxine (T4), Free0.78 - 2.19 ng/dL
    Thyroid Stimulating Hormone (TSH)0.400 - 4.049 µIU/mL

    During pregnancy, the reference range for TSH levels varies:

    Pregnancy TSHReference Range (µIU/mL)
    1st Trimester0.100-2.500
    2nd Trimester0.200-3.00
    3rd Trimester0.300-3.00

    If your hormone levels are out of the usual range, it might indicate:

    • Low T3 Levels : Low T3 levels (free or total) might indicate an underactive thyroid, indicating that the thyroid gland is producing too little hormone.

    • High T3 Levels : High T3 levels (free or total) can suggest an overactive thyroid, indicating the thyroid gland is producing too much hormone.

    • Low T4 Levels : Lower-than-normal T4 levels typically indicate hypothyroidism, meaning the thyroid is underactive. Causes include insufficient dietary iodine, autoimmune diseases, and certain medications.

    • High T4 Levels : Elevated T4 or free T4 levels could suggest thyrotoxicosis, which might occur due to an overactive thyroid, excessive thyroid medication, or thyroid inflammation. This condition accelerates metabolism and can be harmful. Elevated total T4 with normal free T4 levels can also occur during pregnancy or with oestrogen-containing birth control pills due to elevated oestrogen levels.

    • TSH Levels : Low TSH levels often suggest an overactive thyroid (hyperthyroidism), while increased TSH can indicate an underactive thyroid (primary hypothyroidism). Factors such as stress, iodine levels, pregnancy, thyroid gland inflammation, medication, genetics, and certain medications can disrupt TSH levels and the TSH/FT4 relationship.

    Factors Influencing TSH Results

    • Time of Meal and Circadian Rhythm: Research indicates that TSH levels can vary depending on meal timing and the time of day, showing significant changes throughout the day and in response to food intake.

    • Other Factors : TSH levels are subject to numerous influences beyond thyroid function. These include pituitary hormones (glucocorticoids, somatostatin, dopamine), stress, physical activity, genetics, toxin and radiation exposure, thyroid inflammation, dietary iodine levels, pregnancy, chemotherapy, various medications (such as cholesterol-lowering drugs, antidepressants, steroids), and thyroid cancer, all of which can disrupt the TSH/free T4 balance.

    FAQs on Free Thyroid Profile Test in Delhi

    The Free Thyroid test price is ₹ 950. This cost includes the quickest home sample collection within 60 minutes of scheduling, and the reports are available within 6 hours.

    By checking the free levels of FT3, FT4, and TSH in your blood, a Free Thyroid Profile test assesses how well your thyroid gland functions. This test is crucial for diagnosing thyroid disorders like hypothyroidism and hyperthyroidism, facilitating proper treatment and management.

    No, fasting is not needed prior to a Free T3, T4 and TSH test at home.

    Yes, Orange Health Labs allows you to book a Free Thyroid test at home. Visit our website or app, fill in the necessary details, and pick a date and time for sample collection. Your sample will be collected by an eMedic when they reach your location on your chosen time.

    Here are the steps to book a blood test or health checkup on our platform:

    Search for the Test : Find the Free T3, T4, and TSH test in Delhi or at home and click on

    Orange Health’s page.

    • Review and Book : Select the test, check the prerequisites, enter your address, and confirm the booking after choosing a suitable time slot for sample collection.

    • Sample Collection : Our skilled eMedic will arrive within the chosen time slot to collect the sample at your home.

    • Lab Processing : The sample will be sent to our NABL accredited and ICMR approved labs for examination.

    • Receive Results : You will receive the reports of your Free T3, T4, and TSH test via email or WhatsApp within 6 hours. They will also be accessible via our app.

    Normal ranges of the Free Thyroid Profile are listed below:

    FT3: 2.77 - 5.27 pg/mL

    FT4: 0.78 - 2.19 ng/dL

    TSH: 0.400 - 4.049 µIU/mL

    TSH during pregnancy:

    • 1st Trimester: 0.100-2.500 µIU/mL

    • 2nd Trimester: 0.200-3.00 µIU/mL

    • 3rd Trimester: 0.300-3.00 µIU/mL

    Test reports will be ready within 6 hours after we collect your sample.

    Your doctor’s suggestion and your specific health condition will determine how frequently you should take the Free Thyroid Profile test.

    FT3, FT4, and TSH are the three parameters included in the Free Thyroid Profile test.

    The Thyroid Profile Free evaluates the active, unbound thyroid hormones (FT3 and FT4) in addition to TSH, while the Thyroid Profile Total measures both the bound and unbound forms (FT3, FT4, Total T3, and Total T4) along with TSH. Free forms reflect the hormones available for use by body tissues, while total forms include those bound to proteins in the blood.

    Triiodothyronine is the full form of T3, thyroxine is the full form of T4, and thyroid-stimulating hormone is the full form of TSH.

    Without having to visit a physical lab, Orange Health provides the fastest Free Thyroid test services near you across Delhi at the convenience of your home. Localities include but are not limited to Connaught Place, Chandni Chowk, Karol Bagh, Lajpat Nagar, South Extension, Greater Kailash, Hauz Khas, Saket, Vasant Kunj, Dwarka, Rohini, Pitampura, Janakpuri, Rajouri Garden, Mayur Vihar, Preet Vihar, Shahdara, Laxmi Nagar, Green Park, Safdarjung Enclave, Defence Colony, New Friends Colony, Kalkaji, Malviya Nagar, Nehru Place.

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