About This Test
FT4 (Free T4) measures the unbound (biologically active) thyroxine hormone in the blood.
FT4 reflects how well the thyroid gland is producing hormones. While TSH (Thyroid Stimulating Hormone) is produced by the pituitary gland.
It controls how much T4 and T3 the thyroid makes. TSH is the most sensitive test for detecting thyroid imbalance. Clinically this test help to diagnosis of hypothyroidism & hyperthyroidism, monitoring thyroid medication (thyroxine therapy), evaluation of pituitary gland function, screening during pregnancy, checking fatigue, weight changes, hair fall, menstrual issues, etc.
Test Parameters (2)
- FREE T4, Serum
- TSH, Serum
Home Collection
✓ Available
Reports Available In
1 Day
Frequently Asked Questions
These tests measure things like blood sugar, liver function, kidney function, cholesterol, electrolytes.
Fasting is not required.
Mon-Sat, sample before 4pm, report same day and sunday reports, next day.
Yes. We use fully automated machines that ensure accurate and consistent results.
Yes, FT4 (Free T4) and TSH (Thyroid Stimulating Hormone) together can detect early health problems, specifically related to thyroid function.
TAT Policy
The Turnaround Time (TAT) depends on the following factors:
- Registration date and time
- Type of scan or test
- Scan time or sample collection time
In uncommon circumstances, TAT may be delayed due to test complexity or reasons beyond our control. You will be informed of the estimated TAT at the time of registration.
