Thyroid Profile (T3, T4, TSH)
Also known as: TFT
Tests included in this profile 3
- Total Tri-iodothyronine (T3) Contact for price
- Total Thyroxine (T4) Contact for price
- Thyroid Stimulating Hormone (TSH) Contact for price
How to prepare
You can eat and drink normally before the test.
Morning sample preferred. Take thyroid medicine after the sample.
Tell our phlebotomist about any medicines you take. Don't stop them without asking your doctor.
Wear a loose sleeve so the sample can be taken easily from your arm.
How it works
About this test
The Thyroid Profile measures T3, T4 and TSH. The thyroid gland in your neck makes T3 and T4, which control your metabolism, energy, weight and heart rate. TSH comes from the brain and tells the thyroid how much hormone to make. Together they show whether your thyroid is underactive (hypothyroidism) or overactive (hyperthyroidism).
Why is this test done?
- Check thyroid function
- Find hypothyroidism or hyperthyroidism
- Monitor thyroid medicine dose
- Screening in pregnancy and for women planning pregnancy
Symptoms — when should you get tested?
- Tiredness and feeling cold
- Weight gain or unexplained weight loss
- Hair fall and dry skin
- Fast heartbeat, anxiety or tremors
- Irregular periods or difficulty conceiving
- Swelling in the neck (goitre)
Normal range
Reference ranges differ slightly between labs, methods, age and sex. Always discuss your report with your doctor.
If your result is high
A high TSH with low T4 usually means an underactive thyroid. High T3/T4 with low TSH means an overactive thyroid.
Common reasons- Hashimoto's thyroiditis (high TSH)
- Graves' disease (high T3/T4)
- Iodine imbalance
- Thyroid medicine dose too low or too high
If your result is low
A low TSH often means the thyroid is overactive; low T3/T4 means it is underactive.
Common reasons- Hyperthyroidism (low TSH)
- Hypothyroidism (low T4)
- Pituitary problems (rare)
- Severe illness
How is the test done?
- 1Book online
Choose your slot for home collection or a visit to our centre.
- 2Blood sample taken
A trained phlebotomist takes a small blood sample from a vein in your arm with a sealed, single-use needle. It takes about 2 minutes.
- 3Tested in our lab
Your barcoded sample is tested on automated machines with strict quality checks.
- 4Report on WhatsApp
A pathologist checks the result and the report reaches you on WhatsApp and email.
Save more with a health package
This test is also included in these checkups along with many other tests.
Frequently asked questions
Give the sample first in the morning, then take your tablet — unless your doctor says otherwise.
No, but testing in the morning gives the most consistent TSH results.
No fasting is needed for this test. You can eat and drink normally.
Your report is usually ready in same day after the sample reaches our lab. We send it on WhatsApp and email, and you can also download it from the Reports page.
Please call our team to confirm whether home sample collection is available for your location and test.
This test needs a blood sample. Morning sample preferred. Take thyroid medicine after the sample.