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T3, Triiodothyronine, Total

Test Code
T3


Preferred Specimen
Serum, 0.2 mL minimum


Transport Container
SST tube


Transport Temperature
Specimen stable for 8 hours at room temp., 2 days refrigerated and >2 days frozen.


Reference Range
See report for normal ranges.


Clinical Significance
T3 level is an indicator of the ability of the thyroid to respond to both stimulatory and suppressive tests. It also offers a good estimation of thyroidal reserve.




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.