Cortisol, Dexamethasone Suppression Test
Order Name
CORTISL DX
Test Number: 4500725
Revision Date 09/07/2023
Test Number: 4500725
Revision Date 09/07/2023
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Cortisol, Dexamethasone Suppression Test
|
Chemiluminescence Assay | 47844-6 |
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 1 mL (0.5) | Serum | Clot Activator SST | Refrigerated |
| Alternate 1 | 1 mL (0.5) | Plasma | Lithium Heparin PST (Light Green Top) | Refrigerated |
| Instructions | Specimen should be drawn at 0700 next morning after 1.0 mg of dexamethasone administered orally at bedtime. Stability: Ambient 8 hours, Refrigerated 14 days, Frozen 30 days |
|||
| GENERAL INFORMATION | |
|---|---|
| Testing Schedule | Mon - Fri |
| Expected TAT | 1-3 days |
| Clinical Use | Dexamethasone Suppression test is used to document hypersecretion of the adrenocortical hormones and evaluation of depression. |
| CPT Code(s) | 82533 |
| Lab Section | Chemistry |