About This Test
The Free T4 (Free Thyroxine) test measures the level of unbound, biologically active thyroxine circulating in the blood.
T4 is the main hormone produced by the thyroid gland and is essential for metabolism regulation, growth and development, heart and muscle function, Temperature control.
FT4 is one of the most important tests for evaluating thyroid function.
Free T4 is the metabolically active fraction of thyroxine. FT4 along with TSH gives an accurate picture of thyroid status in patients with abnormal thyroid binding globulin (TBG) like in pregnancy and individuals on treatment with estrogens, androgens, phenytoin or salicylates. This assay is useful for diagnosing both Hypo / Hyperthyroidism.
Test Parameters (1)
- FREE T4, Serum
Home Collection
✓ Available
Reports Available In
1 Day
Preparation / Prerequisite
No Special requirement
Frequently Asked Questions
These tests measure things like blood sugar, liver function, kidney function, cholesterol, electrolytes, thyroid.
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, Free T4 (Free Thyroxine) testing can detect early health problems, mainly 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.
