Thyroid Profile (T3, T4, TSH)
Also known as: Thyroid Function Test, TFT
Category: HormonesSample: BloodReport in: Same Day
Measures thyroid hormones to check if the thyroid is underactive or overactive.
Why it's done
- Diagnose hypothyroidism and hyperthyroidism
- Monitor thyroid treatment
What it measures
T3, T4 and TSH.
Preparation
Usually no fasting; take sample before your thyroid tablet.
Normal range
TSH about 0.4-4.5 mIU/L (pregnancy ranges differ)
Understanding results
High TSH suggests underactive thyroid; low TSH suggests overactive thyroid.
Related conditions
Ordered by
Frequently asked questions
Why is the Thyroid Profile (T3, T4, TSH) test done?
Diagnose hypothyroidism and hyperthyroidism, Monitor thyroid treatment
How do I prepare for Thyroid Profile (T3, T4, TSH)?
Usually no fasting; take sample before your thyroid tablet.
What is the normal range for Thyroid Profile (T3, T4, TSH)?
TSH about 0.4-4.5 mIU/L (pregnancy ranges differ)
Medically reviewed by
Medical review pending
Last updated
9 October 2026
Sources
- ICMR standard treatment workflows
- Reference ranges vary by laboratory - always read your report with your doctor
This information is for general awareness and does not replace advice from a qualified doctor. Do not start, stop or change any medicine without medical advice.