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HelpTest ID FFT3F Triiodothyronine (T3), Free, serum
Method Name
Immunoassay (IA)
Reporting Name
T3, FreeSpecimen Type
SerumDraw blood in a plain red-top tube(s), serum gel tube is acceptable. Spin down and send 1 mL of serum refrigerated in a plastic vial.
Specimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Refrigerated (preferred) | 14 days |
| Frozen | 180 days | |
| Ambient | 72 hours |
Reference Values
2.3 - 5.0 pg/mL
Day(s) Performed
Monday through Sunday
Report Available
1 dayPerforming Laboratory
Medtox Laboratories, Inc.CPT Code Information
84481