Description
Number of Tests Included:
Single blood test measuring free T4 levels.
What is an FT4 Test?
A hormonal test that measures the concentration of free (unbound) Thyroxine in the bloodstream, giving accurate insight into thyroid hormone balance.
Purpose of the Test:
Diagnose hypothyroidism and hyperthyroidism
Evaluate thyroid gland performance
Monitor ongoing thyroid treatment
Investigate symptoms like fatigue, hair fall, anxiety, weight changes
Who Should Get This Test?
Individuals with suspected thyroid issues
Patients already diagnosed with thyroid disorders
People with abnormal TSH or T3 levels
Pregnant women, if advised
Individuals undergoing thyroid hormone therapy
Components of the Test:
Serum Free T4 (FT4) level measurement
Understanding the Test Report:
High FT4 → Indicates hyperthyroidism
Low FT4 → Indicates hypothyroidism
Best interpreted along with TSH, T3, and FT3 levels.
Preparation and Procedure:
Routine blood draw
No special preparation needed
How is the Test Done?
A blood sample is analyzed using immunoassay methods to measure free T4 concentration.
Best Time for Test:
Anytime, with morning samples preferred for better hormonal accuracy.
Booking and Checking Reports:
You can book the FT4 test through SDL, opt for home sample collection, and access your test report digitally.
