Cortisol Level, Dexamethasone Suppression
Icon & Photos
Mint Green Top (Lithium Heparin Gel)
Specimen Requirements
Preferred:
Container/Tube: Mint Green Top (Lithium Heparin Gel)
Minimum Volume: 1.0 mL Serum
Collection Instructions: Centrifuge within 2 hours, Collect before 9am.
Also Acceptable:
Container/Tube: Gold Top (SST-Gel)
Specimen Stability
Ambient: 8 hours
Refrigerate: 48 hours
Frozen: aliquot for longer storage
Reference Range
BVH Lab:
< 1.8 (Normal)
1.8 - 5.0 (Indeterminate)
> 5.0 (Consistent with Cushing's Syndrome)
Methodology
Chemiluminescent Immunoassay
CPT
82533