FREE THYROXINE (FT4)
₹290.00
Measures free thyroxine levels to assess thyroid status.
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About the FREE THYROXINE (FT4)
Differentiate hypo/hyperthyroidism with TSH.
Sample Required
Blood (venous sample).
Fasting Requirement
No fasting required.
Why is this Test Done?
- Differentiate hypo/hyperthyroidism with TSH.
- Monitor therapy.
General Reference Range
- ~0.8–1.8 ng/dL: Typical adult reference
What Abnormal Results Mean
Low FT4 with high TSH suggests primary hypothyroidism; high FT4 with low TSH suggests hyperthyroidism or overtreatment.
