Triiodothyronine, Free by Equilibrium Dialysis/HPLC-Tandem Mass Spectrometry
Order Name
T3 FREE SP
Test Number: 6905173
Revision Date 12/12/2022
Test Number: 6905173
Revision Date 12/12/2022
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Triiodothyronine, Free by Equilibrium Dialysis/HPLC-Tandem Mass Spectrometry
|
Quant Equilibrium Dialysis/HPLC-Tandem Mass Spectrometry |
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 1 mL (0.3 mL) | Serum | Clot Activator (SST or Red No-Gel) | Frozen |
| Alternate 1 | 1 mL (0.3 mL) | Plasma | EDTA (Lavender Top) | Frozen |
| Alternate 2 | 1 mL (0.3 mL) | Plasma | Sodium Heparin (Green Top, No-Gel) | Frozen |
| Instructions | Notes: 0.3 mL (Note: This volume Does NOT allow for repeat testing). Specimen Type: Red-top tube, gel-barrier tube, lavender-top (EDTA) tube or green-top (sodium heparin) tube Specimen Storage: FREEZE (preferred) or refrigerate Stability: Room temperature up to 5 days Refrigerated up to 5 days Frozen: up to 70 days Specimen Collection: Serum/plasma must be separated from cells within 45 minutes of venipuncture, transfer into a plastic transfer tube and Freeze. Special Instructions: Testing is performed at Esoterix Endocrinology Laboratory: ES#500336 Specimen Stability: Ambient: Not Available, Refrigerated : Not Available, Frozen: Not Available |
|||
| GENERAL INFORMATION | |
|---|---|
| Expected TAT | 6 - 10 days |
| Performing Labcorp Test Code | 503600 |
| Notes | Labcorp Test Code: 503600 |
| CPT Code(s) | 84481 |
| Lab Section | Reference Lab |