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FREE THYROXINE INDEX
MessageTHIS TEST IS NO LONGER AVAILABLE.
CONSIDER FREE T4 AS REPLACEMENT.
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:
Report Available:
Reference Range
FREE THYROXINE INDEX | 0Y 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.
T-Uptake (TU) and total thyroxine (T4) are used to estimate the amount of circulating free T4.
Performing Laboratory
LMH - Chemistry x3739 or 3764