Thyroid Profile (with T4, T7)
Order Name
T7 PROF
Test Number: 2911175
Revision Date 06/04/2021
Test Number: 2911175
Revision Date 06/04/2021
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Thyroid Hormone Binding Ratio (T3 Uptake)
|
Chemiluminescence Assay | 3050-2 |
|
Thyroxine (T4)
|
Chemiluminescence Assay | 3026-2 |
|
Thyroxine Index (T7), Free
|
Calculation | 32215-6 |
| 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 | Stability: Ambient 1 day. Refrigerated 6 days. Frozen 6 months | |||
| GENERAL INFORMATION | |
|---|---|
| Testing Schedule | Mon - Fri |
| Expected TAT | 1-2 Days |
| CPT Code(s) | 84479, 84436 |
| Internal Comments | 9/20/17 update SU -JK 6/15/18 change Serum only. Specimen stability: Ambient 8 hours. Refrigerated 7 days. Stability: Ambient 1 day. Refrigerated 6 days. Frozen > 6 days JK |
| Service Provided By |  |
| Lab Section | Chemistry |