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:
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Diagnose hypothyroidism and hyperthyroidism
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Evaluate thyroid gland performance
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Monitor ongoing thyroid treatment
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Investigate symptoms like fatigue, hair fall, anxiety, weight changes
Who Should Get This Test?
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Individuals with suspected thyroid issues
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Patients already diagnosed with thyroid disorders
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People with abnormal TSH or T3 levels
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Pregnant women, if advised
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Individuals undergoing thyroid hormone therapy
Components of the Test:
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Serum Free T4 (FT4) level measurement
Understanding the Test Report:
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High FT4 → Indicates hyperthyroidism
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Low FT4 → Indicates hypothyroidism
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Best interpreted along with TSH, T3, and FT3 levels.
Preparation and Procedure:
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Routine blood draw
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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.
