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Free Thyroxine Index (T7)

Message
Day(s) Test Set Up: Monday, Wednesday and Friday


Test Code
FRTIX


CPT Codes
84436, 84479

Preferred Specimen
1.0 mL plasma


Instructions
Draw blood in a PST Tube. Spin down.


Transport Container
PST Tube


Transport Temperature
Refrigerated


Reference Range
T3UP: 23.5-40.6 %
T4: 5.53-11.0 ug/dl



Last Updated: January 30, 2013


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.