TSH Test in Bengaluru - Price & Details

The thyroid-stimulating hormone (TSH) test is a blood test used to check how well your thyroid gland is working. TSH, also known as thyrotropin, is produced by the pituitary gland in the brain and acts as a signal that tells the thyroid how much thyroid hormone to make. These thyroid hormones regulate many important body functions, including metabolism, heart rate, body temperature, digestion, energy levels, and mood. When thyroid hormone levels are low, the pituitary releases more TSH to stimulate the thyroid. When thyroid hormone levels are high, it produces less TSH. Measuring TSH helps doctors determine whether your thyroid is functioning normally. The test is commonly used to screen for and monitor hypothyroidism (underactive thyroid) and hyperthyroidism (overactive thyroid). It is also used to monitor people taking thyroid hormone replacement or receiving treatment for an overactive thyroid. Although the TSH test is often the first test used to assess thyroid function, it cannot identify the exact cause of a thyroid disorder. If the result is abnormal, your doctor may recommend additional tests such as Free T3, Free T4, or thyroid antibody tests for a more complete evaluation.

Your doctor may recommend a TSH test if you:

• Have symptoms of hypothyroidism (underactive thyroid), such as tiredness, weight gain, constipation, dry skin, feeling cold, depression, or slow heart rate.
• Have symptoms of hyperthyroidism (overactive thyroid), such as unexplained weight loss, rapid heartbeat, anxiety, tremors, sweating, heat intolerance, or difficulty sleeping.
• Have a swelling or lump in the neck (goitre) or another suspected thyroid problem.
• Have a personal or family history of thyroid disease or an autoimmune condition that increases the risk of thyroid disorders.
• Are pregnant or planning a pregnancy, especially if you have risk factors for thyroid disease, as healthy thyroid function is important for both mother and baby.
• Are already being treated for a thyroid disorder, to monitor how well treatment is working and whether medication doses need adjustment.
• Are taking medicines that can affect thyroid function, if advised by your doctor.
• Need routine thyroid screening, particularly if you are at higher risk for thyroid disease based on your age, medical history, or other health conditions.

The TSH test helps doctors assess thyroid function and may aid in detecting or monitoring:

• Hypothyroidism (underactive thyroid): The thyroid does not produce enough hormones.
• Hyperthyroidism (overactive thyroid): The thyroid produces too much hormone.
• Subclinical hypothyroidism or hyperthyroidism: Early thyroid dysfunction where TSH is abnormal but thyroid hormone levels may still be within the normal range.
• Goitre (enlarged thyroid gland): To evaluate whether thyroid dysfunction is contributing to thyroid enlargement.
• Thyroid disorders during pregnancy: To monitor thyroid function, as abnormal thyroid hormone levels can affect both the mother and baby.
• Response to thyroid treatment: To check whether thyroid hormone replacement therapy or treatment for hyperthyroidism is working effectively and whether medication doses need adjustment.
• Pituitary gland disorders: In certain cases, abnormal TSH levels may indicate a problem with the pituitary gland, which produces TSH.

What to Expect Before the TSH Test

• No fasting is required. You can eat and drink normally before the test unless your doctor advises otherwise.
• Tell your doctor about all medicines and supplements you take. Some medicines (such as metformin, amiodarone, steroids, and proton pump inhibitors) and supplements containing biotin, iodine, calcium, iron, or soy can affect TSH levels or interfere with thyroid hormone medicines, which may influence your test results.
• The TSH test can be done at any time of the day. However, if you are having repeat TSH tests, it is best to have the blood sample collected at about the same time of day each time for more consistent comparison of results.
• Stop taking biotin (vitamin B7) supplements at least 72 hours before the test, if advised by your doctor. According to the American Thyroid Association, biotin can interfere with thyroid test results and may make TSH appear lower than it actually is.
• If you take iron or calcium supplements, let your doctor know, as they can affect the absorption of thyroid hormone medicines.
• Inform your doctor if you have been seriously ill recently, since some illnesses can temporarily affect TSH levels and influence the interpretation of the test.

What to Expect During the Blood Collection

• A trained phlebotomist will clean the skin with an antiseptic and collect a small blood sample from a vein in the arm using a sterile needle.
• The procedure usually takes only a few minutes and may cause mild discomfort or a slight pinching sensation.

What to Expect After the TSH Test

• Mild throbbing at the site may be felt after the blood is drawn. You may feel light-headed, which will pass in a few moments.
• Once the blood sample is collected, it is sent to a laboratory for analysis, where your TSH levels are measured. Once the report is ready, you can access it on PharmEasy online portal.

Note: If you notice anything unusual at the puncture site, such as persistent bleeding, a rash, or pain, consult your healthcare provider.

The TSH test measures one key parameter: thyroid-stimulating hormone (TSH) in the blood.

Note: The reference ranges above are for general guidance and may vary slightly between laboratories. TSH test results should always be interpreted along with your symptoms, medical history, thyroid hormone levels (Free T3 and Free T4), medications, pregnancy status, and other relevant laboratory findings. Your doctor will consider all these factors before making a diagnosis or recommending treatment.

Note: TSH results should be interpreted by a doctor in combination with your symptoms, medical history, and other thyroid function tests. A single TSH value is not sufficient to confirm or rule out thyroid disease.

Potential Risks and Complications

• The sample collection procedure for the TSH test is generally safe, with minimal risk. Mild pain, slight bleeding, or bruising may occur at the blood draw site. Dizziness or light-headedness may sometimes occur, which will pass in a few minutes. You may lie down until you feel better. Occasionally, vein access may be difficult or infection may occur. Avoid lifting heavy objects or engaging in strenuous exercise for at least 4 to 6 hours.

Understanding TSH Test Limitations

• A TSH test alone cannot diagnose all thyroid disorders. Your doctor may recommend additional tests, such as Free T3, Free T4, or thyroid antibody tests, for a complete evaluation.
• Several factors can affect TSH results, including age, pregnancy, time of day, smoking, iodine intake, certain medications and supplements (especially biotin), and other medical conditions.
• TSH may not accurately reflect thyroid function in people with pituitary or hypothalamic disorders, central hypothyroidism, or severe illness.
• A normal TSH result does not completely rule out thyroid disease, and an abnormal result does not always mean treatment is needed. Further evaluation may be required based on your symptoms and medical history.
• TSH levels take time to change. After starting or changing thyroid medication, it may take 6–8 weeks for TSH levels to stabilise, so repeat testing is usually done only after this period.

The TSH test is priced at around ₹349, though the exact cost can vary based on your location in Bengaluru and available offers. To better understand the pricing differences, you can compare the TSH test costs across major cities in India.

You can book a TSH Test in Bengaluru through PharmEasy with convenient home sample collection across several localities, including :

• Indiranagar
• Koramangala
• HSR Layout
• Whitefield
• Marathahalli
• Electronic City
• Jayanagar
• JP Nagar
• Banashankari
• BTM Layout
• Yelahanka
• Hebbal
• Malleshwaram
• Rajajinagar
• Basavanagudi
• Bellandur
• Mahadevapura
• KR Puram
• Kalyan Nagar
• Richmond Town

You can also check service availability during purchase by entering your pin code.