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 #

T4 Free

Test Code
LAB127


Alias/See Also
FT4


CPT Codes
84439

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


Minimum Volume
1 mL Serum


Instructions
Allow complete clot formation. Spin sample within 2 hours of collection


Transport Temperature
Room Temperature


Specimen Stability
Room temperature: 8 hours
Refrigerated: 48 hours
Frozen: 3 months




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.