Test Code Epic LAB137 T3, FREE
Sunquest ordering code
FT3
Sample type
Container/Tube Type:
Green (Lithium Heparin)
Lime Green (Heparin Plasma Separator Tube)
Red (No Additive)
SST (Serum Separator)
Preferred Collection Container: SST (Serum Separator)
Transport Information: 1.5 mL blood/1.0 mL serum
CPT Code
84481
Alias name
FREE T3, FT3, T3 FREE, TRIIODOTHYRONINE FREE,
Performing Laboratory
Testing Laboratory: Pathology Laboratory
Laboratory Section: Core Laboratory
Minimum Volume
0.6 mL blood/0.2 mL serum
Specimen Stability
Refrigerated Stability: 7 days
Frozen Stability: 1 month
Ambient Stability: 4 hours
Methodology
Electrochemiluminescence