Test Information:
Free Triiodothyronine is the free faction that represents the physiologically active thyroid hormone. Free T3 is important in monitoring patients on anti-thyroid therapy. Serum FT3 may also be useful in assessing the severity of the thyrotoxic state.
Specimen Container:
Gold Top SST Tube (with clot activator) or Red Top Tube (Plain) – USE PLASTIC TUBE
Specimen Type:
Serum
Required Volume:
2 mL
Patient Preparation:
No Patient Preparation
Notes:
N/A (Not Applicable)
Storage & Stability
(Before Processing)
- Storage: 2 to 8˚C
Stability: 7 days - Storage: 20 to 25˚C
Stability: 5 days - Storage: – 20˚C
Stability: 1 month
FREEZE ONLY ONCE!
Transport Temperature:
Ref (2˚C – 8˚C)
Test Category:
Routine
Test Schedule:
Daily
Results Availability:
Within 4 hours