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FT3, FT4, TSH (ULTRASENSITIVE)

Book FT3, FT4, TSH (ULTRASENSITIVE) in Noonmati, Guwahati at GetVisit. This panel measures free T3 and free T4, the active thyroid hormones, and an ultrasensitive TSH. NABL-accredited labs in Noonmati and Basistha, home collection, reports in 24 to 48 hours and cashless OPD.
What is a FT3, FT4, TSH (ULTRASENSITIVE) Test in Guwahati ?
What is FT3, FT4, TSH (ULTRASENSITIVE)?
This panel measures free T3 and free T4, the active thyroid hormones, and an ultrasensitive TSH. Free T3 and free T4 show how much active hormone is available to body tissues. It is particularly relevant in India, where hypothyroidism and autoimmune thyroid disease are among the most prevalent endocrine disorders, especially in women aged 25 to 50.
What does FT3, FT4, TSH (ULTRASENSITIVE) measure?
Ultrasensitive TSH helps detect small changes in pituitary signals that control the thyroid. These tests are important for diagnosing hyperthyroidism and hypothyroidism. They also monitor treatment with thyroid medicine or after thyroid surgery. Doctors use the results to explain symptoms like tiredness, weight change, fast heart rate, or cold intolerance.
What symptoms suggest FT3, FT4, TSH (ULTRASENSITIVE) may be needed?
FT3, FT4, TSH (ULTRASENSITIVE) is generally requested as part of a thyroid function assessment. Doctors commonly investigate this area when someone reports unexplained weight gain or loss, persistent fatigue, hair thinning or diffuse hair loss, cold or heat intolerance, constipation or frequent loose stools, low mood or anxiety, palpitations, and irregular or heavy menstrual periods. Whether FT3, FT4, TSH (ULTRASENSITIVE) specifically is the right test depends on your history and what your doctor is looking for. Sample collection for Guwahati is available at partner labs, with home collection in many areas including Noonmati and Basistha; you can confirm availability for your address at booking.
How is FT3, FT4, TSH (ULTRASENSITIVE) performed?
Collection is a routine blood draw. Using a single-use sterile needle, the phlebotomist takes a small sample from a vein in your arm; GetVisit's team in Noonmati and Basistha, Guwahati then barcodes and transports it under controlled conditions to the NABL lab.
How accurate is FT3, FT4, TSH (ULTRASENSITIVE)?
Samples collected in Noonmati or Basistha, Guwahati are transported under the conditions the test requires and processed by the partner laboratory under its own quality-control procedures. Where a NABL-accredited laboratory is used, that accreditation applies to the laboratory and its defined scope of tests.
Are there any risks to FT3, FT4, TSH (ULTRASENSITIVE)?
This is a low-risk procedure whether done at a lab in Noonmati or by home collection in Basistha, Guwahati. The only intervention is the blood draw. Side effects are limited to a brief pinch and an occasional small bruise that resolves in 24 to 48 hours. Patients on anticoagulants should hold light pressure for 3 to 5 minutes after the draw.
Did you know?
A FT3, FT4 and TSH blood test assesses thyroid function.
FT3, FT4, TSH (ULTRASENSITIVE) Test Preparation in Guwahati
Medication guidance:
If you take levothyroxine, give the sample first and take your dose afterwards, since taking it earlier can briefly raise free T4 and give a misleadingly low TSH.
Diet and fasting:
You do not need to fast. Have your normal meals, but skip a heavy, oily meal and alcohol the evening before as a general precaution.
When to book:
Choose a morning slot for the most consistent results. Same-day home collection is offered throughout Guwahati, Dispur and Zoo Road included.
What to carry:
Have your doctor's referral and photo ID ready; earlier reports for the same test are useful for tracking trends.
FT3, FT4, TSH (ULTRASENSITIVE) Test Parameters in Guwahati
FT3 (Free T3), FT4 (Free T4), TSH (Ultrasensitive)
Why Take a FT3, FT4, TSH (ULTRASENSITIVE) Test in Guwahati ?
When does a doctor order FT3, FT4, TSH (ULTRASENSITIVE)?
FT3, FT4, TSH (ULTRASENSITIVE) is part of a thyroid function panel used to check symptoms like fatigue, weight change, palpitations, temperature sensitivity, or mood shifts. Doctors order it to diagnose or monitor hypothyroidism, hyperthyroidism, thyroiditis, medication effects, and following thyroid surgery.
Who should get FT3, FT4, TSH (ULTRASENSITIVE) done in Guwahati?
Thyroid disorders are commonly diagnosed in the region's urban population. Women aged 25 to 50 across Noonmati, Basistha and Rukminigaon with fatigue, weight change or menstrual irregularity should prioritise thyroid screening. Adults above 30 in Guwahati benefit from periodic health screening that includes FT3, FT4, TSH (ULTRASENSITIVE) as part of a broader preventive panel. Residents of Noonmati, Basistha, and across the city with chronic conditions, those on long-term medication, and individuals with a relevant family history should test at the frequency their specialist recommends.
What conditions can FT3, FT4, TSH (ULTRASENSITIVE) help diagnose?
A high TSH with low free T4 confirms hypothyroidism; a low TSH with high T3/T4 confirms hyperthyroidism. Positive anti-TPO antibodies point to autoimmune (Hashimoto's or Graves') disease. Subclinical patterns, a mildly abnormal TSH with normal T4, help identify people who need monitoring before overt disease develops. Abnormal results can come from autoimmune disease, iodine issues, certain medicines, or pituitary disorders. A family history of thyroid disease makes testing more likely.
What do FT3, FT4, TSH (ULTRASENSITIVE) results mean?
TSH above 4.0 mIU/L with low free T4: hypothyroidism, levothyroxine replacement is started and TSH rechecked every 6-8 weeks until stable. TSH below 0.4 mIU/L with high free T3/T4: hyperthyroidism, requires antibody tests and thyroid scan. Elevated anti-TPO with normal TSH: autoimmune thyroid disease (Hashimoto's), monitor annually as this often progresses to hypothyroidism over years.
How often should FT3, FT4, TSH (ULTRASENSITIVE) be repeated?
Adults with a normal result and no symptoms: every 2 to 3 years, or annually after age 35. Patients on levothyroxine: every 6 to 8 weeks after a dose change, then every 6 to 12 months once stable. Pregnant women and those planning pregnancy: as directed, since thyroid targets are tighter in pregnancy.
What happens after your FT3, FT4, TSH (ULTRASENSITIVE) results are ready?
You will be notified as soon as the laboratory releases your results, usually within 24 to 48 hours. Open the report in the GetVisit app to see each value beside its reference range, share it with your doctor in a tap, or book a specialist consultation to talk it through.
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Thank you, Rinku. I appreciate your help during my visit. The hospital staff were courteous and professional. Overall, a very good experience!
Vijay Bisht was friendly, helpful, and made our home test process seamless. Grateful for his timely support and follow-up.
A big thank you to Shikhar from the Visit app for going above and beyond to arrange a last-minute appointment during an urgent situation. His seamless coordination truly made a difference.
A clean facility enhances experience. Quick checkups are a plus. Miss Rinku from Aditya Birla Health Insurance provided excellent service and handled our files well.
“The service was excellent—she was helpful, efficient, and made my recovery smooth and stress-free. Her support made a real difference.”
“Thank you, Shared Gupta, for the great support with my reimbursement claims and Wipro health packages. Truly appreciated!”
Thank you, Rinku. I appreciate your help during my visit. The hospital staff were courteous and professional. Overall, a very good experience!
I want to share my feedback on the help I received for my health checkup. I was happy with the guidance and support. Thank you for your assistance; it made the experience stress-free.
Huge shoutout to Shikhar from the Visit app! He has been incredibly supportive during emergencies — always responsive and ready to help. Truly impressed by his dedication and calm efficiency.
“I connected with the concierge team today and spoke with Vijay—he was helpful and made a real effort to address my concerns.”
I appreciate Shreshta's outstanding support. She kept me updated on my medicals after hours and ensured everything went smoothly. Her proactive communication and care made a big difference.
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Hi Aniket, Annu, Mayur, I appreciate Shikhar's support in organizing clinic appointments for my child at odd hours. It's a sensitive matter for any parent, and I'm thankful for his understanding.
I want to share my feedback on the help I received for my health checkup. I was happy with the guidance and support. Thank you for your assistance; it made the experience stress-free.
Huge shoutout to Shikhar from the Visit app! He has been incredibly supportive during emergencies — always responsive and ready to help. Truly impressed by his dedication and calm efficiency.
“I connected with the concierge team today and spoke with Vijay—he was helpful and made a real effort to address my concerns.”
I appreciate Shreshta's outstanding support. She kept me updated on my medicals after hours and ensured everything went smoothly. Her proactive communication and care made a big difference.
“Grateful to Shikhar for finding a cataract specialist at a convenient time and ensuring a smooth experience. A true asset to the Visit team!”
Hi Aniket, Annu, Mayur, I appreciate Shikhar's support in organizing clinic appointments for my child at odd hours. It's a sensitive matter for any parent, and I'm thankful for his understanding.