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T3 Total

Test Code
859


Preferred Specimen
1 mL serum collected in a serum separator tube (SST)


Minimum Volume
0.3 mL


Transport Container
Plastic screw-cap vial


Transport Temperature
Room temperature


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


Methodology
Immunoassay (IA)

Setup Schedule
Set up: Daily; Report available: Next day


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




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.