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T3, FREE

Message
Collect a full tube, following standard venipuncture techniques.


Test Code
LAB137 T3FRE


Alias/See Also
T3FRE


CPT Codes
84481

Instructions
Processing Instructions (Lab use only): Centrifuge and separate cells after clot formation and within 4 hours of collection. Remove serum if testing will be delayed more than 24 hours. Minimum Testing Volume: 0.3 mL Serum or Plasma Transport Temperature: Refrigerated Stability: Ambient: UnacceptableRefrigerated (ON GEL): 24 hoursRefrigerated (OFF GEL): 6 daysFrozen: >6 days Causes for Rejection: Samples stored on gel >24 hours, unlabeled, mislabeled, wrong tube type, hemolyzed, QNS, exceeds specimen stability requirements.


Clinical Significance
1230130079



Last Updated: May 18, 2026


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.