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

Message
THIS TEST IS NO LONGER AVAILABLE.
CONSIDER FREE T4 AS REPLACEMENT.


Test Code
T7


Preferred Specimen
PLASMA


Transport Container
MINT GREEN


Transport Temperature
REF - 24HRS


Methodology
CALCULATED

Setup Schedule
Set Up:
Report Available:


Reference Range
FREE THYROXINE INDEX0Y 00M F 5.9-13.1 0Y 00M M 5.9-13.1


Clinical Significance
The free thyroxine index is an estimate of the amount of circulating free thyroxine.
T-Uptake (TU) and total thyroxine (T4) are used to estimate the amount of circulating free T4.



Performing Laboratory
LMH - Chemistry  x3739 or 3764



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.