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 #

Free T3

Test Code
T3F


CPT Codes
84481

Preferred Specimen
Serum Separator (Gold/Yellow) Tube


Minimum Volume
0.5 mL


Transport Temperature
Refrigerated


Specimen Stability
Room Temperature: 8 hrs
Refrigerated: 48 hrs
Frozen: >48 hrs


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis, Icterus, Lipemia


Reference Range
Age Reference Low Reference High
0 Minutes 2 Years 3.34 5.24
2 Years 13 Years 3.31 4.88
13 Years 21 Years 2.91 4.53
21 Years 150 Years 2.20 4.00


Performing Laboratory
This test is performed at the following locations:
  1. MercyOne Siouxland Medical Laboratory
  2. MercyOne Dakota Dunes Medical Laboratory



Last Updated: July 2, 2024


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.