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 #

T3 Total

Test Code
859


Alias/See Also
LAB136
TOTAL T3
TRIIODOTHYRONINE


CPT Codes
84480

Preferred Specimen
1 mL serum


Minimum Volume
0.3 mL


Transport Container
Serum separator tube (SST)


Transport Temperature
Room temperature


Specimen Stability
Room temperature: 7 days
Refrigerated: 7 days
Frozen: 28 days


Methodology
Immunoassay (IA)

Setup Schedule
Tues-sat


Report Available
3 days


Reference Range
<1 Month Not established
1-23 Months 117-239 ng/dL
2-12 Years 105-207 ng/dL
13-20 Years 86-192 ng/dL
>20 Years 76-181 ng/dL


Clinical Significance
Total T3 measurements are used to diagnose and monitor treatment of hyperthyroidism and are essential for recognizing T3 toxicosis.


Performing Laboratory
Quest Diagnostics Nichols Institute-San Juan Capistrano, CA
33608 Ortega Highway
San Juan Capistrano, CA 92675-2042




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.