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 #

THYROXINE, TOTAL (T4)

Test Code
LAB126


Alias/See Also
T4


CPT Codes
86003

Preferred Specimen
Green top/Gel Li Hep


Minimum Volume
2.0 mL


Other Acceptable Specimens
7 mL Red Top Tube
Pediatric Red
Pediatric Green


Transport Temperature
Refrigerate specimen


Methodology
ECLIA

Setup Schedule
Set Up:Daily Report Available:1 day


Reference Range
Thyroxine, total 4.6-12.0 mcg/dL


Clinical Significance
Total T4 is an assay for the quantitative determination of thyroxine (T4) in human serum or plasma. This includes both protein-bound and unbound forms of thyroxine. Total T4 determinations are used as an aid in the assessment of thyroid status.


Performing Laboratory
GBMC Chemistry



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.