Laboratory Services
T3 (Triiodothyronine), Reverse, Serum
Print this pageUpdated Test Information:
| Test Description |
T3 (Triiodothyronine), Reverse, Serum
|
|
|---|---|---|
| Test ID |
RT3
|
|
| General Information |
Useful for diagnosis of Sick-euthyroid syndrome |
|
| Specimen Type |
Serum |
|
| Specimen Requirements |
|
|
| Minimum Sample Volume |
0.4 mL |
|
| Stability |
|
|
| Unacceptable Specimen Conditions |
Gross hemolysis |
|
| Limitations |
Generally, reverse triiodothyronine tests are not necessary since triiodothyronine should not be ordered in hospitalized or sick patients |
|
| Methodology |
Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS) |
|
| Estimated TAT |
2-6 days |
|
| Testing Schedule |
Monday - Friday |
|
| Retention |
14 days |
|
| CPT Code(s) |
84482 |
|
| Reference Range |
10-24 ng/dL |
|
| Performing Lab |
Mayo |
|
| LOINC Code(s) |
3052-8 |
|
| Additional Information |
