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)