
Triiodothyronine (T3), Free by Equilibrium Dialysis/LC-MS/MS
2011793
Ordering Recommendation
Mnemonic
T3 FREE SP
Methodology
Quantitative Equilibrium Dialysis/High Performance Liquid Chromatography-Tandem Mass Spectrometry
Performed
Varies
Reported
8-14 days
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
ARUP Consult®
Disease Topics
Specimen Required
- Patient Preparation
- Collect
- Plain red or lavender (K2EDTA). Also acceptable: Serum separator tube, lavender (K3EDTA), pink (K2EDTA), or Green (Sodium Heparin).
- Specimen Preparation
- Separate from cells ASAP or within 45 minutes of collection. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.3 mL)
- Storage/Transport Temperature
- Frozen. Also acceptable: Refrigerated or Room Temperature.
- Unacceptable Conditions
- Remarks
- Stability
- Ambient: 5 days; Refrigerated: 5 days; Frozen: 10 weeks
Reference Interval
By report
Interpretive Data
Components
Component Test Code* | Component Chart Name | LOINC |
---|---|---|
2011794 | Free Triiodothyronine, Dialysis/LC-MS/MS |
Aliases
- Triiodothyronine, Free (FT3)
Performed at Esoterix Endocrinology