Test Code FT3 Triiodothyronine, Free (Free T3)
Additional Codes
| Hospital Ordering Code |
|---|
| LAB137 T3, FREE |
Specimen Requirements
Container/Tube Type:
Green (Lithium Heparin)
Lime Green (Heparin Plasma Separator Tube)
Red (No Additive)
SST (Serum Separator)
Preferred Collection Container:
Green (Lithium Heparin)
Light Green (Heparin Plasma Separator Tube)
Also Acceptable Collection Container:
Plasma from Lavender tubes is acceptable but will not route in the Laboratory Information System (Sunquest).
Transport Information:
1.5 mL blood/1.0 mL serum
Minimum Sample Volume:
0.6 mL blood/0.2 mL serum
Stability
Refrigerated Stability:
7 days
Frozen Stability:
1 month
Ambient Stability:
4 hours
CPT
84481
Performing Laboratory
Pathology Laboratory, UnityPoint Health, Des Moines
Methodology
Electrochemiluminescence
Alias
Free T3 (Triiodothyronine), FT3 (Free Triiodothyronine), T3 (Triiodothyronine), Free, Serum, Triiodothyronine, Free, Free T3 Only, Serum
Performance
Daily
Analytical Time:
2 - 24 hours
Testing Laboratory:
Pathology Laboratory
Laboratory Section:
Core Laboratory