A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #

Free Thyroxine Index

Test Code
FTI


Preferred Specimen
2 mL plasma or serum (1.0 minimum)


Instructions
Avoid hemolysis. Includes: Free Thyroxine Index, T3 Uptake and Total T4.


Transport Container
PST Tube, SST Tube also accepted


Transport Temperature
Ambient


Specimen Stability
Stable for 8 days at 2-8 °C, 3 months at -20 °C. Freeze only once.




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.