Cortisol, Dexamethasone Suppression
| Abbrev Code: | CORTDEX | ||
| Order Code: | LAB8293 | Order Name: | Cortisol, Dexamethasone Suppression |
| Order Instructions: | For standard cortisol testing, please order LAB61. | ||
| Methodology: | Immunoassay using competition principle | ||
| CPT Codes: | 82533 x1 | ||
| Turnaround Time: | Performed and reported 24 hours/day. | ||
Collection Instructions
| Specimen: | Blood |
| Optimal Volume: | 2.5 mL |
| Minimum\Peds Volume: | 0.6 mL |
| Container: | Green (lithium heparin, gel) Alternate Containers: Green (lithium heparin, no gel), Green (lithium heparin) on ICE, Red (no gel), Red (gel) |
| Collection Instructions: | Blood should be collected 8 hours post-dexamethasone given at midnight. |
| Causes for Rejection: | Gross hemolysis |
Processing and Shipping
| Specimen Processing: | Centrifuge and aliquot 1.25 mL, 0.2 mL minimum. Store in refrigerator. |
| Shipping Instructions: | Ship at refrigerated temperature to arrive within 48 hours of collection. Alternatively, ship on dry ice. |
| Stability: | 1 day at room temperature; 4 days refrigerated; 1 year frozen. |
| Test Performed at or Referral Lab | Chemistry (Roche-UMMC East) |
Interpretive
| Reference Range: | 8 hrs post 1 mg dexamethasone given at midnight: < 1.8 µg/dL |
Click HERE to Report test errors or omissions.
*If no email program is associated with this computer, please contact:
[email protected] for TestID: 7027"