Triiodothyronine (T3), Free
Order Name
T3 FREE
Test Number: 3606325
Revision Date 06/15/2018
Test Number: 3606325
Revision Date 06/15/2018
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Triiodothyronine (T3), Free
|
Chemiluminescence Assay | 3051-0 |
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 1mL (0.5) | Serum | Clot Activator SST | Refrigerated |
| Alternate 1 | 1mL (0.5) | Plasma | Lithium Heparin PST (Light Green Top) | Refrigerated |
| Instructions | Stability: Ambient 1 day. Refrigerated 6 days. Frozen > 6 days | |||
| GENERAL INFORMATION | |
|---|---|
| Testing Schedule | Mon - Fri |
| Expected TAT | 1-3 days |
| Clinical Use | Useful clinically as a second or third level test of thyroid function where T3 thyrotoxicosis is suspected. |
| CPT Code(s) | 84481 |
| Lab Section | Chemistry |