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    What is a Free Thyroid Profile Test?

    The Free Thyroid Profile test is a comprehensive blood test that evaluates the functioning of your thyroid gland, a small butterfly-shaped organ located at the front of the neck. The thyroid produces 2 hormones: triiodothyronine (T3) and thyroxine (T4). These hormones exist in two key forms: the free forms (free T3 (FT3) and free T4 (FT4)) that enter the tissues directly and the bound forms (T3 and T4), that are attached to proteins and cannot enter your tissues.

    The Free Thyroid Profile test assesses free levels of thyroid hormones in blood, that is, FT3 and FT4. Additionally, it also measures thyroid-stimulating hormone (TSH) made by the pituitary gland, which regulates the production of T3 and T4 by the thyroid gland. These hormones are essential for regulating various bodily functions including growth, development and metabolism. By measuring the free levels of thyroid hormones, along with TSH, the Free Thyroid Profile test can provide a more accurate assessment of thyroid gland function and help identify if an individual has a thyroid disorder like hypothyroidism (underactive thyroid) and hyperthyroidism (overactive thyroid)

    In bustling cities like Bangalore, where life is always on the go, it's easy to overlook our health. Getting a Free Thyroid Test in Bangalore is important to detect thyroid problems early on and be proactive about your health, which is key for your overall well-being.

    Free Thyroid Profile Test Parameters

    The Free Thyroid Profile test measures the following parameters:

    FT3

    This parameter measures the unbound or active form of the T3 hormone, FT3, which directly enters tissues where it is needed.

    FT4

    This parameter measures the unbound, active form of the T4 hormone, FT4, which directly reaches tissues where it is required. Tests that measure FT4 provide a more accurate reflection of thyroid gland function when assessed alongside TSH levels.

    TSH and 3 rd Generation TSH

    TSH modulates the production of T3 and T4 hormones by the thyroid gland. When thyroid hormone levels are low, the pituitary gland increases TSH production to stimulate the thyroid. Conversely, high thyroid hormone levels lead to reduced or no TSH production by the pituitary gland through negative feedback. The 3 rd Generation TSH test parameter is an advanced method that can check these tiny changes in TSH levels, providing a clearer picture of thyroid function.

    By looking at these parameters of the Free Thyroid Profile test, doctors can obtain valuable information about the thyroid gland's overall function and accurately identify thyroid disorders.

    Free Thyroid Profile Test Preparation

    The following need to be considered before taking a Free Thyroid Profile test:

    Prerequisites

    No specific prerequisites such as fasting are required for the test. However, your doctor may sometimes recommend fasting before this test for confirmation. Please consult the doctor who is treating you to determine if fasting is necessary for your specific condition.

    Best time to get tested

    It's best to take the Thyroid test in early the morning as food intake later during the day might affect the test results. Additionally, it's important to consistently schedule the test at the same time of day for each administration.

    Eligibility for Free Thyroid test

    Anyone experiencing symptoms of thyroid dysfunction or those with a family history of thyroid disorders should consider getting tested.

    Cautions before taking the Free Thyroid test

    Several factors can affect your Thyroid test results such as:

    • The time gap between your last dose of thyroid medication and when your blood is drawn, especially if your medication contains T3.

    • Stress, including the influence of non-thyroidal illnesses, dietary and sleep patterns.

    • Certain medications (like birth control) and supplements (like biotin) you may be taking.

    Discussing these factors with your doctor before undergoing a thyroid test is crucial to ensure an accurate diagnosis.

    Why Take a Free Thyroid Profile Test?

    Measuring the free levels of thyroid hormones along with TSH helps in finding and keeping track of thyroid problems, which can affect your health in many ways. Here are some reasons why you might need to take this test:

    • Symptoms of thyroid dysfunction: If you are experiencing symptoms of thyroid dysfunction such as weight fluctuations, changes in appearance like a puffy face, dry skin, brittle hair, joint swelling, sluggishness, temperature sensitivity, irregular heart rate, irregular periods or depression, these tests are necessary to identify any underlying thyroid conditions such as hyper or hypothyroidism.

    • Family history: Thyroid disorders can run in families, so if you have a close relative with a thyroid condition, it is recommended to undergo regular screening.

    • Autoimmune conditions: People with autoimmune conditions like type 1 diabetes have a higher chance of developing autoimmune thyroid disorders. Therefore, regular thyroid testing is crucial for them.

    • Pregnancy: During pregnancy and after giving birth, thyroid hormone levels can vary, potentially impacting the health of both the mother and baby. It's essential to undergo regular thyroid testing during this period to monitor any fluctuations and ensure the well-being of both.

    • Monitoring treatment: If you've been diagnosed with a thyroid condition and are on treatment, it's vital to regularly take Thyroid Profile tests. These tests help assess how well your treatment is working and allow for adjustments in medication doses if necessary.

    Free Thyroid Profile Test Results & Interpretation

    Understanding the interpretation of Free T3, T4 and TSH test results is essential for evaluating thyroid health accurately. Here’s what the normal ranges of hormones look like:

    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 normal range, it could indicate the following:

    • If your TSH levels are high, it may indicate an underactive thyroid (primary hypothyroidism), while low levels often suggest an overactive thyroid (hyperthyroidism). Various factors such as inflammation of the thyroid gland, stress, iodine levels in the blood, pregnancy, medication, genetics and certain medications can influence TSH levels and disrupt the TSH/FT4 relationship.

    • If your T3 levels (free or total) are high, it could indicate that you have an overactive thyroid, meaning your thyroid gland is producing too much hormone.

    • On the other hand, if your T3 levels (free or total) are low, it might mean your thyroid is underactive, producing too little hormone.

    • If your T4 or free T4 levels are higher than normal, it could mean you have thyrotoxicosis. This might happen due to conditions like an overactive thyroid, thyroid inflammation, or taking too much thyroid medication. Thyrotoxicosis speeds up your metabolism, which can be harmful. Elevated total T4 levels with normal free T4 levels can also occur during pregnancy or when taking oestrogen-containing birth control pills because oestrogen levels are high in those conditions.

    • Lower-than-normal T4 levels typically indicate hypothyroidism, which means your thyroid is underactive. Hypothyroidism can result from various factors such as autoimmune diseases, inadequate dietary intake of iodine, and certain medications.

    Factors Affecting the Results of TSH

    • Time of Meal and Circadian Rhythm: Some studies have demonstrated that TSH levels can change based on the amount of food consumed and the time of day, with significant changes seen throughout the day and in reaction to meals.

    • Additional Causes: It is crucial to understand that TSH is a labile hormone that can be affected by non-thyroidal pituitary factors (glucocorticoids, somatostatin, dopamine, etc.), stress, activity, genetics, exposure to toxins and radiation, inflammation of the thyroid gland, insufficient or excessive iodine in the diet, pregnancy, and certain medications that can alter the relationship between TSH and free T4.

    If your thyroid test results aren't normal, don't worry. Your doctor will help you understand and manage any thyroid issues you may have.

    FAQs on Free Thyroid Profile Test in Bangalore

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

    A Free Thyroid Profile test checks the free levels of thyroid hormones which are FT3, FT4 and TSH in your blood to evaluate how well your thyroid gland is working. It helps diagnose thyroid disorders like hypothyroidism and hyperthyroidism, ensuring proper treatment and management.

    No, fasting is not required before getting a Free T3, T4 and TSH test at home.

    Yes, you can get a Free Thyroid test at home through Orange Health Labs. Simply visit our website or use our app to schedule the test. After providing the required details and selecting the sample collection date and time, an eMedic will come to your doorstep for sample collection.

    Listed below are the steps to book any blood test or health checkup on our platform

    Search for the test: Look for the Free Thyroid Test in Bangalore or at home and click on Orange Health’s listing.

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

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

    Lab Processing: The collected sample will be sent to and examined at our NABL accredited and ICMR approved labs.

    Receive Results: You will receive your reports via email or WhatsApp within 6 hours. They will also be available on our app.

    The normal ranges of the Free Thyroid Profile are:

    • 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

    You can expect your test reports within 6 hours of sample collection.

    The frequency of the Free Thyroid Profile test depends on your doctor’s suggestion and your medical condition.

    The parameters included in the Free Thyroid Profile test include FT3, FT4, and TSH.

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

    The full forms of T3, T4, and TSH are triiodothyronine, thyroxine, and thyroid-stimulating hormone, respectively.

    Without having to visit a physical lab, Orange Health provides the fastest Free Thyroid test services near you across Bangalore at the convenience of your home. Localities include but not limited to Adugodi, Banashankari, Bannerghatta, Basavanagudi, Bellandur, BTM Layout, Chamrajpet, Cottonpet, CV Raman Nagar, Domlur, Electronic City, Frazer Town, Giri Nagar, Hebbal, Hennur, Hosur, HSR Layout, Jakkur, Jalahalli, Jaya Nagar, Kadugodi, Kammanahalli, Kengeri, Koramangala, Mahalakshmi Layout, Madiwala, Magadi Road, Malleshwaram, Marathahalli, Mathikere, Mysore Road, Nagarbhavi, Nandhini Layout, Old Airport Road, Peenya, RT Nagar, Rajaji Nagar, Rajarajeshwari Nagar, Sadashivnagar, Sahakara Nagar, Sanjay Nagar, Sarjapur, Seshadripuram, Shanthi Nagar, Shivaji Nagar, Sri Nagar, Tyagarajnagar, Uttarahalli, Vasanth Nagar, Vidyaranyapura, Vijaya Nagar, Whitefield, Yelahanka, Yeshwantpur.

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