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HelpTriiodothyronine (T3) Free
Additional Codes
LAB137
Performing Laboratory
MBMC Main Laboratory
Methodology
Electro-Chemiluminescent Immunoassay (ECLIA)
Specimen Requirements
Preferred Specimen Type: Plasma
Container/Tube: Mint-green top (lithium heparin
gel)
Specimen Volume: Full tube
Alternative Specimen Type: Serum
Alternative Container/Tube: Gold, Serum gel
Alternative Specimen Volume: Full tube
Specimen Transport Temperature
Ambient
Day(s) Test Set Up
Monday through Sunday
Turnaround Time:
STAT: 1 hour after receipt in laboratory
Routine: within 4 hours
Reference Values
2.00-4.40 pg/mL
Test Classification and CPT Coding
Test Classification:This test has been cleared
or approved by the U.S. Food and Drug Administration and is used
per manufacturer’s instructions.
CPT Code:
84481
Stability
5 days Refrigerated