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Free Triiodothyronine Index (FT3I)
METHODOLOGY
This is not a test per-se. It is a calculated ratio of two tests: Total T3 / THBR
PERFORMED
Tuesday & Friday
REPORTED
2 days
REMARKS
FT3-Index Components: Triiodothyronine (T3), Thyroid Hormone Binding Ratio (THBR)
REFERENCE RANGE
80 - 180 (no units)
CPT CODES
84480 (34), 84479 (THBR)
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