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T3 (triiodothyronine), Total

Message
Performed in the Chemistry Laboratory, x5820
10.2018


Test Code
T3


Alias/See Also
Total T3


CPT Codes
84480

Preferred Specimen
Plasma from a green top (PST) tube


Minimum Volume
1mL


Transport Container
Green Top (SST) tube


Transport Temperature
Room temperature


Specimen Stability
2 - 8 oC: 24 hours


Methodology
Chemiluminescent Microparticle Immunoassay (Abbott Architect)

Setup Schedule
This assay is performed 24 hours per day, 7 days per week


Reference Range
58 - 159 ng/dL


Clinical Significance
This test is used as an indicator of the ability of the thyroid to respond to both stimulatory and suppressive tests




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.