T3 Free and Total
Order Name
T3FR & TOT
Test Number: 2020150
Revision Date 06/04/2021
Test Number: 2020150
Revision Date 06/04/2021
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Triiodothyronine (T3), Free
|
Chemiluminescence Assay | 3051-0 |
|
Triiodothyronine (T3), Total
|
Chemiluminescence Assay | 3053-6 |
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 1 mL (0.5 mL) | Serum | Clot Activator SST | Refrigerated |
| Alternate 1 | 1 mL (0.5 mL) | Plasma | Lithium Heparin PST (Light Green Top) | Refrigerated |
| Instructions | Specimen should be separated from cells/gel if testing delayed >24hrs. Stability: Ambient 1 day. Refrigerated 6 days. Frozen > 6 days |
|||
| GENERAL INFORMATION | |
|---|---|
| Testing Schedule | Mon - Fri |
| Expected TAT | 1-2 Days |
| Notes | 7/6/2020 The T3 Total unit of measure has been changed from ng/mL to ng/dL. |
| CPT Code(s) | 84481, 84480 |
| Lab Section | Chemistry |