Orange Health
Search for tests or checkups
 Tests
 CheckupsSupport
    Homethyroid function test
    Thyroid Function Test (TFT)₹589₹40032% off
    trust markerMins HomeCollection
    trust markerHappyCustomers
    trust markerGoogleRating
    trust markerCertifiedLabs

    What is a Thyroid Function Test?

    The thyroid gland is a small, butterfly-shaped endocrine organ found in the lower front part of the neck. It plays a vital role in regulating various metabolic processes in the body by producing and secreting hormones, primarily thyroxine (T4) and triiodothyronine (T3). Thyroid function tests (TFT) are a series of blood tests that evaluate thyroid health by measuring the levels of thyroid hormones. The most common components of TFTs include measurements of thyroid-stimulating hormone (TSH), total thyroxine, and total triiodothyronine.

    The purpose of thyroid function testing is to evaluate how well the thyroid gland functions and to diagnose potential thyroid disorders. Abnormal results on the TFTs can help identify conditions such as hypothyroidism, which is characterised by insufficient hormone production, or hyperthyroidism, where excessive thyroid hormone levels lead to disturbances in metabolism. TFTs are also crucial for monitoring treatment effectiveness in individuals with known thyroid disorders and guiding necessary adjustments to therapy.

    Thyroid Profile Test Preparations

    To ensure accurate results on the Thyroid Function Test, here are a few things you should know:

    Pre-requisites : Fasting is not required for the test. However, if additional tests are ordered, it is crucial to check with your doctor to see if you need to be fasting. It is also advisable to inform your doctor about any medications or supplements you are currently taking, including thyroid hormone medications.

    Precautions Before the Test : Avoid significant stress and strenuous exercise, as these factors can influence thyroid hormone levels. If you are pregnant or suspect you may be pregnant, inform your healthcare provider, as thyroid function may be affected during pregnancy.

    Thyroid Profile Test Procedure

    Thyroid Function tests involve the collection of a blood sample. Once you book the test with Orange Health Labs, a skilled and professional eMedic will arrive at your desired location for sample collection. Here are the steps of the testing procedure:

    • Preparation : The eMedic will arrive at your preferred location within an hour of booking the test. They will explain the procedure to you and, if you have any questions regarding sample collection, they will answer them. You will be asked to sit comfortably in a chair for sample collection.

    • Site Selection : A suitable vein, usually in the inner elbow area, will be selected and the skin in this area will be cleaned with an antiseptic wipe.

    • Needle Insertion : A needle will be inserted in the vein and blood will be drawn. You might feel a mild pinch or sting during this step.

    • Blood Collection : The required amount of blood will be collected in a vial.

    • Needle Removal : The eMedic will remove the needle and apply pressure at the needle insertion site with a gauze pad to stop any bleeding.

    • Bandaging : Lastly, a small bandage will be placed over the puncture site to protect it.

    Why Take Thyroid Profile Test?

    Thyroid function tests play an essential role in the assessment and management of thyroid health. Testing is crucial for several reasons:

    • Diagnosis of Thyroid Disorders : TFTs help identify various thyroid conditions, including hypothyroidism (underactive thyroid), hyperthyroidism (overactive thyroid), and autoimmune disorders such as Graves' disease and Hashimoto's thyroiditis.

    • Monitoring Treatment Efficacy : For individuals undergoing treatment for thyroid disorders, regular TFTs are vital to assess the effectiveness of medications or other therapies.

    • Evaluating Symptoms : Symptoms such as unexplained weight changes, fatigue, hair loss, or mood changes may indicate thyroid dysfunction.

    • Screening at Risk Populations : Individuals with a family history of thyroid disease, those over the age of , or those with other autoimmune conditions may benefit from routine screening with TFTs.

    • Assessing Thyroid Health During Pregnancy : Pregnant women require careful monitoring of thyroid function due to the critical role thyroid hormones play in foetal development. TFTs can help ensure that both maternal and foetal thyroid levels are adequate, reducing the risk of complications.

    Who Should Take the Thyroid Function Test?

    Regular thyroid function testing is particularly important for individuals with diagnosed thyroid disorders or certain health conditions. Testing is recommended if you have any of the following:

    • Symptoms of an overactive or underactive thyroid, such as fatigue, weight changes, or mood fluctuations.

    • Noticeable swelling or thickening in the neck area.

    • An irregular or fast heart rate.

    • Elevated cholesterol levels that may contribute to atherosclerosis (fat buildup in the arteries).

    • Osteoporosis (characterised by fragile or thinning bones).

    • Fertility issues, abnormal menstrual cycles, recurrent miscarriages, or low libido.

    • A family history of autoimmune diseases.

    Signs That You May Need a TFT

    You should consider getting thyroid function tests if you experience any of the following symptoms:

    Symptoms of an overactive Thyroid :

    • Increased sweating

    • Irritability

    • Weakness in the arms and legs

    • More frequent bowel movements than usual

    • Irritation or bulging eyes

    • Low tolerance for heat

    Symptoms of an underactive Thyroid (e.g., cold intolerance, dry skin, hair loss).

    • Weight gain

    • Hair loss

    • Slower heart beat

    • Shortness of breath

    • Low tolerance for cold

    • Constipation

    Other common symptoms of Thyroid abnormalities may include:

    • Fatigue

    • Unintended weight loss or gain

    • Mood fluctuations (depression or anxiety)

    • Swelling or thickening in the thyroid region

    • Irregular or fast heart rate

    • Elevated cholesterol levels

    Thyroid Function Test Results & Interpretation

    The results of Thyroid Function Test are interpreted using the normal range for each hormone in the thyroid panel. The thyroid function test interpretation is as follows:

    ParameterBiological Reference RangeInterpretation
    TSH0.400 to 4.049 µIU/mLNormal TSH levels indicate proper thyroid function. Increased TSH may suggest hypothyroidism, while low levels are associated with hyperthyroidism. In pregnant women, TSH levels vary by trimester.
    T4Total T4: 5.53-11.0 μg/dLNormal T4 levels reflect healthy thyroid function. Low levels are indicative of hypothyroidism, while elevated levels suggest hyperthyroidism or excessive thyroid hormone intake.
    T3Total T3: 0.97-1.69 ng/mLNormal Total T3 levels suggest adequate thyroid hormone production. Low levels may indicate hypothyroidism, while high levels are associated with hyperthyroidism.

    In pregnancy, the TSH levels can vary significantly. They are stated as below:

    TrimesterTSH (µIU/mL)
    First0.100 to 2.50
    Second0.200 to 3.00
    Third0.300 to 3.00

    The T3 and T4 levels change in every stage of pregnancy. They are as stated below:

    TrimesterT4 (μg/dL)T3 (ng/mL)
    First7.57 - 8.131.21 to 1.32
    Second7.17 - 8.641.13 to 1.64
    Third7.07 - 8.441.16 to 1.51

    FAQs on Thyroid Profile Test

    No, fasting is not typically required for Thyroid Test.

    Common symptoms that indicate a thyroid disease include weight changes, fatigue, hair loss, and changes in mood or energy levels.

    The frequency of TFTs depends on your health condition, especially if you have an existing thyroid disorder. For routine monitoring, annual testing is generally recommended, but your doctor may advise more frequent testing depending on your symptoms.

    While some thyroid disorders, such as hypothyroidism, can be managed effectively with medication, permanent reversal of thyroid damage may not always be possible. However, early detection and treatment can help control symptoms and prevent further complications.

    TFTs are simple blood tests with minimal risks. You might experience mild discomfort, slight bruising, or swelling at the puncture site, but serious complications are extremely rare.

    Abnormal TFT levels may be caused by a variety of factors, including thyroid dysfunction (hypothyroidism or hyperthyroidism), certain medications, iodine imbalance, and hormonal changes. Other conditions, such as autoimmune disorders, can also affect thyroid levels.

    Improving your thyroid levels typically involves following a balanced diet rich in nutrients like iodine, selenium, and zinc, managing stress, and taking prescribed thyroid medications regularly. Avoiding excessive iodine and regular monitoring also helps maintain optimal thyroid function.

    Yes, thyroid function is commonly monitored during pregnancy since thyroid hormone levels can fluctuate significantly. Proper monitoring ensures that both maternal and foetal thyroid health are managed, helping to avoid complications.

    Orange Health Labs ensures that you receive your TFT report timely. TFT results are generally available within 6 hours of collecting the sample.

    Abnormal TFT results can indicate conditions such as hypothyroidism (low thyroid function) or hyperthyroidism (excessive thyroid activity).

    What Do Thyroid Function Test Measure?

    Thyroid Function Test measure the concentration of specific hormones circulating in your bloodstream that commonly include:

    Thyroid Stimulating Hormone (TSH) : TSH is a key hormone produced by the pituitary gland in the body. It regulates the production of thyroid hormones. Elevated TSH levels often indicate hypothyroidism, while low levels can suggest hyperthyroidism.

    Triiodothyronine (T3) : This parameter measures the amount of T3, which plays a critical role in regulating metabolism. Abnormal T3 levels may indicate issues with thyroid hormone production and metabolism.

    Thyroxine (T4) : This test measures the primary hormone secreted by the thyroid. It provides essential insights into thyroid health, with low levels typically indicating an underactive thyroid and high levels indicating an overactive thyroid.

    Thyroid Function Test Normal Range

    The Thyroid Function test normal range may vary for pregnant and non-pregnant individuals, reflecting the physiological changes that occur during pregnancy. In non-pregnant individuals, established reference ranges indicate optimal thyroid hormone levels necessary for maintaining metabolic health. However, during pregnancy, thyroid hormone levels undergo significant fluctuations. As a result, the normal range for TSH, T3, and T4 are adjusted based on the trimester of pregnancy.

    Conversely, any deviations from the thyroid function test normal values can indicate potential thyroid dysfunction, such as hypothyroidism or hyperthyroidism. The results of the test should be discussed with a doctor for accurate interpretation and diagnosis.

    Factors Affecting Your Thyroid Test Results?

    Several factors can influence the results of thyroid function tests, leading to fluctuations in the levels of thyroid hormones.

    • Medical Conditions That Can Impact TFT Results

    Conditions such as hypothyroidism or hyperthyroidism can lead to an increase or decrease in TSH levels. The levels of T3 and T4 hormones reduce in hypothyroidism, whereas their levels rise in hyperthyroidism. Disorders like Graves' disease or toxic nodular goitre can also alter thyroid hormone production. Additionally, serious illnesses including heart attack, kidney failure, liver illness, trauma etc., can also affect the results of TFTs.

    • Impact of Food/ Other Factors on TFT Results

    The presence of too much iodine in the body affects TFT results. This may happen with tests such as a CT scan with contrast. In rare cases, consuming foods that contain iodine may also cause abnormal TFT results in individuals with an existing thyroid disease. Fasting and malnutrition can also affect the concentration of thyroid hormones. Thyroid hormone levels may decline in the presence of a severe acute illness.

    • How Medications Affect TFT Results

    Medications can significantly impact TFT results by altering thyroid hormone levels. Vitamins and mineral supplements containing iodine or biotin affect TFT results. Drugs such as phenothiazines, phenytoin, and glucocorticoids may suppress TSH release, leading to false low readings. The excessive intake of thyroid hormone medications or supplements, painkillers, and chemotherapy can also suppress TSH levels and elevate T3/T4 levels.

    When to Seek Medical Advice Based on TFT Results

    Abnormal thyroid function test (TFT) results can indicate underlying thyroid disorders that require medical attention.

    • Consulting a Doctor for High/Abnormal TFT Levels

    If your TFT results are outside the normal range, it’s crucial to seek medical advice as they may suggest hypothyroidism, hyperthyroidism, or other thyroid-related issues. A doctor can further evaluate you to identify the exact condition and recommend appropriate treatment.

    • Addressing Abnormal TFT Results

    Abnormal TFT results may necessitate lifestyle modifications and/or treatment. Your treating doctor might recommend dietary changes, weight management, increased physical activity, or stress management techniques to support thyroid health.

    • When Lifestyle Changes Aren’t Enough

    In some cases, lifestyle changes may not adequately address thyroid imbalances. If you continue to experience symptoms or if your TFT results remain abnormal despite these adjustments, it is essential to consult a doctor for further evaluation. They may suggest medications including thyroid hormone replacement therapy for managing thyroid levels.

    • Medication Adjustments Based on TFT Levels

    If you are already undergoing treatment for thyroid dysfunction, TFT levels will be considered to adjust medications. High or low hormone levels may require a change in dosage or a different medication altogether. Regular monitoring of TFT results is essential to ensure that treatment remains effective and that your thyroid function is appropriately managed.

    Key Benefits of Thyroid Profile Test

    TFTs offer a range of benefits, from early detection of thyroid disorders to ongoing monitoring of existing conditions.

    • Early Detection of Thyroid Issues : Thyroid function tests are crucial for the early detection of thyroid-related disorders. By identifying abnormalities in hormone levels, hypothyroidism and hyperthyroidism can be diagnosed even in the absence of noticeable symptoms.

    • Monitoring of Existing Conditions : TFTs play a vital role in monitoring individuals diagnosed with thyroid disorders. They also help in monitoring those with pre-existing conditions that may affect thyroid function, such as heart disease, liver, or kidney disease. Regular testing allows doctors to assess how these conditions impact thyroid health and adjust treatment plans accordingly.

    • Preventing Complications Related to Thyroid Health : By regularly assessing thyroid hormone levels through TFTs, potential complications associated with thyroid dysfunction can be prevented. This can help prevent more severe health issues, such as cardiovascular problems, weight changes, and mood disorders, contributing to better overall health.

    • Cost-Effectiveness of Regular Testing : Regular TFTs are a cost-effective strategy for maintaining thyroid health. The thyroid function test cost is a small investment compared to the potential expenses that may arise from untreated thyroid disorders.

    Common Diseases Diagnosed by Thyroid Profile Test

    TFTs are widely used to diagnose a range of thyroid diseases and related illnesses such as:

    • Hypothyroidism

    • Hyperthyroidism

    • Hashimoto’s disease

    • Graves’ disease

    • Thyroid nodules

    • Thyroid cancer

    Risk Factors for Thyroid Disorders

    Several risk factors may be linked to thyroid disorders. These include:

    • Family history of thyroid disease

    • Gender (females may be at higher risk)

    • Increasing age (older than years)

    • Previous thyroid problems

    • Autoimmune diseases (e.g., type diabetes, pernicious anaemia, and Addison’s disease)

    • Iodine deficiency or excessive iodine intake

    • Getting exposed to radiation, particularly in the neck region

    Complications of Untreated TFT Levels

    Failure to address abnormal TFT levels can lead to serious health complications that can affect various bodily functions. Complications may include:

    • Severe fatigue and weakness

    • Mood disorders like depression

    • Infertility or reproductive issues

    • Goitre (enlargement of the thyroid gland)

    • Osteoporosis

    • Heart problems (heart failure or stroke)

    • Myxoedema coma (due to hypothyroidism)

    Overall, untreated thyroid disorders can significantly impact the quality of life.

    How to Maintain a Healthy Lifestyle

    Maintaining thyroid health is crucial for overall well-being. Here are some key tips to promote a healthy lifestyle:

    • Have a Balanced Diet : Incorporate iodine-rich foods like fish, dairy, and eggs to support thyroid hormone production. Include selenium, zinc, and vitamins like D and B12 from sources like nuts, seeds, and leafy greens.

    • Learn Stress Management : Practise stress-relieving activities such as yoga, meditation, or breathing exercises to reduce cortisol levels, which can interfere with thyroid function.

    • Get Regular Exercise : Engage in regular physical activity, such as walking, swimming, or cycling, to maintain a healthy metabolism and support thyroid function.

    • Achieve Healthy body weight : Strive for a healthy body weight as increased body weight is linked to higher disturbances in thyroid production, leading to elevated risk of thyroid-related disorders.

    • Avoid Excessive Iodine : While iodine is essential for thyroid function, too much can lead to thyroid dysfunction. Consult your doctor for the right balance.

    • Limit Processed Foods : Avoid processed and sugary foods that may disrupt thyroid health. Instead, opt for whole, nutrient-dense foods.

    Testing During Pregnancy or Special Conditions

    It is essential to test thyroid function during pregnancy and postpartum as thyroid disorders can sometimes emerge during pregnancy. Pregnancy can naturally impact thyroid function, particularly TSH levels, which may be slightly lower during the first trimester. Additionally, levels of T3 and T4 hormones also undergo continuous changes during pregnancy. Hyperthyroidism, and occasionally hypothyroidism, can persist after childbirth, requiring ongoing attention. If you have a history of thyroid issues, it’s important to inform your doctor when planning a pregnancy or after becoming pregnant to ensure proper management.

    4.9
    Google Rating

    Highest Rated Diagnostic Lab

    • Easy, hassle free and technology friendly with quick report delivered . Highly recommend this with their app that keeps all your reports .
      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! 😊
      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
      5.0
    • Orange Health team collected the sample on scheduled time, and received updates at every stage and very cost effective compare to other labs/Hospital. Highly recommend this lab to everyone
      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..
      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.
      5.0
    • Had a great experience. The professional who came to talk the blood was very quick and the process was barely painful. Results could have come a lil quicker. Mine took almost 10 hours. But apart from that, had a pretty positive experience.
      5.0
    • Well tuned procedure to book the blood test.moderately price d,sample collection at your home by professionally sound staff , painless ensuring perfect hygiene, report with in 6 hours.and follow up in offer ,thanks for the excellent service. Ji
      5.0
    • We availed orange labs services for our children recently - quick prompt friendly and professional service offered at home and reports were made available in few hours sooner than the committed time . Would recommend for anyone looking for home lab services and quick results
      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
      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 3 hours of order cancellation.