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Laboratory test

Thyroid Profile Blood Test – T3, T4 & TSH

A thyroid profile includes measurements used to assess thyroid function. Review whether your selected panel measures total or free hormones and discuss abnormal results, symptoms and medication timing with a doctor.

Also known as

Thyroid Function Test (TFT) · T3 T4 TSH Test · Thyroid Panel · Thyroid Profile Test · Triiodothyronine, Thyroxine and Thyroid Stimulating Hormone · Thyroid Test · TFT (Thyroid Function Test) · TFT · T3 T4 TSH · Thyroid screen · Thyroid Function Test

Sample
Blood
Fasting
Not required
Expected report time
Within 6 hours
Parameters
3

Thyroid Profile Test: quick answers

Thyroid Profile Test full form
Triiodothyronine, Thyroxine and Thyroid Stimulating Hormone
Thyroid Profile Test price
₹549, home sample collection
Normal range (adults)
TSH: about 0.4–4.0 mIU/L; Total T4: about 5.0–12.0 µg/dL more
Done for
Tiredness, weight gain, feeling cold, constipation or dry skin; Weight loss, palpitations, tremor, heat intolerance or anxiety; Irregular periods, difficulty conceiving or planning a pregnancy
Fasting
Not required
Report
Within 6 hours

What is the Thyroid Profile Test?

A Thyroid Profile measures thyroid-related hormones including T3, T4 and thyroid-stimulating hormone (TSH). Doctors interpret these results together with symptoms, medical history and other findings when evaluating thyroid function or monitoring an existing thyroid disorder.

Thyroid Profile Test normal range

MeasurementTypical adult value
TSHabout 0.4–4.0 mIU/L
Total T4about 5.0–12.0 µg/dL
Total T3about 80–200 ng/dL

Ranges differ by laboratory and method. Pregnancy uses trimester-specific TSH ranges; where a laboratory has none, the American Thyroid Association suggests an upper TSH limit of about 4.0 mIU/L in early pregnancy.

Ranges differ between laboratories and methods. The reference range printed on your own report is the one to read your result against.

What your Thyroid Profile Test result means

High TSH, low or normal T4
Usually points to an underactive thyroid (hypothyroidism). A high TSH with a normal T4 is called subclinical hypothyroidism and is often rechecked before treatment is decided.
Low TSH, high T3 or T4
Usually points to an overactive thyroid (hyperthyroidism), for example Graves' disease or a toxic nodule. It can also mean the dose of thyroid medicine is too high.
Abnormal T3 or T4 with normal TSH
Can follow a recent illness, pregnancy, oral contraceptives or other medicines that change thyroid-binding proteins. A free T3 and free T4 test may be asked for next.

One result is not a diagnosis. A doctor reads it with your symptoms, history, medicines and other tests.

Why is the Thyroid Profile Test done?

  • Tiredness, weight gain, feeling cold, constipation or dry skin
  • Weight loss, palpitations, tremor, heat intolerance or anxiety
  • Irregular periods, difficulty conceiving or planning a pregnancy
  • A swelling in the neck (goitre) or a thyroid nodule
  • Checking the dose of thyroid medicine such as levothyroxine
  • Routine screening in diabetes, high cholesterol or a family history of thyroid disease

What does the Thyroid Profile Test (T3, T4, TSH) measure?

3 parameters. Expand a group to see the measurements, units and available method details.

Thyroid3 parameters
ParameterUnitCatalogue methodLOINC
Total T3 (Triiodothyronine)ng/dLC.M.I.A3053-6
Total T4 (Thyroxine)µg/dLC.M.I.A3026-2
TSH (Thyroid Stimulating Hormone)µIU/mLC.M.I.A3016-3

The reference interval printed on your actual laboratory report governs interpretation. Intervals can vary by laboratory, method, age, sex and pregnancy. Methods can also vary by processing laboratory.

Thyroid Profile Test: sample & preparation

Sample: Blood. Fasting: Not required.

  • No fasting is required. If you are on thyroid medicine, take the sample before your daily dose and tell the lab what time you last took it.

Want a more complete checkup?

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Frequently asked questions

Is a thyroid profile the same as a TFT?
Yes. Thyroid function test (TFT), thyroid profile and T3 T4 TSH test are names for the same panel. An extended or free thyroid profile measures free T3 and free T4 instead of the total hormones.
Do I need to fast for a thyroid test?
Fasting is not needed for T3, T4 or TSH. If you take levothyroxine, many doctors prefer the sample before that day's dose so the result is read the same way each time.
What is the difference between total T4 and free T4?
Total T4 counts all the hormone in blood, most of which is bound to proteins. Free T4 counts only the unbound, active part, so it is less affected by pregnancy, oral contraceptives or protein changes.
Can supplements change my thyroid result?
Yes. High-dose biotin (vitamin B7), often sold for hair and nails, can falsely raise or lower results on many thyroid assays. Tell the collection team, and ask your doctor whether to pause it for a few days before the test.
How often should thyroid levels be checked on medicine?
After a dose change, TSH is usually rechecked in about 6 to 8 weeks. Once stable, many doctors check it every 6 to 12 months.
How much does the Thyroid Profile Test (T3, T4, TSH) cost?
The current online price is ₹549. Review your booking total before payment.
Can I book this test for home collection?
Yes. Add your collection address and choose an available collection slot at checkout.
When is the report expected?
The catalogue lists Within 6 hours. Confirm the collection and report schedule with the booking team.
Can I book this with other tests?
You can add available tests to the same cart. Review the combined preparation instructions and collection requirements with the booking team.

Sources: Alexander EK et al. 2017 Guidelines of the American Thyroid Association for the Diagnosis and Management of Thyroid Disease During Pregnancy and the Postpartum. Thyroid 2017; Jonklaas J et al. Guidelines for the Treatment of Hypothyroidism, American Thyroid Association. Thyroid 2014. General information, not medical advice.

This page gives catalogue facts only (sample, preparation, report time) and has not been reviewed by a doctor. It is general information, not a diagnosis or advice for you: your doctor decides which tests you need and what the results mean.

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3 parameters · No fasting required · Report time: Within 6 hours

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