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Cortisol, Total, Serum
Test CodeCortisol, Total, Serum - NCMC
Alias/See Also
CORTR/S
CPT Codes
82533
Preferred Specimen
In-Patient: 1.0 mL plasma from Lithium Heparin
Out-Patient: 1.0 mL serum from Serum SST or Red Top
Out-Patient: 1.0 mL serum from Serum SST or Red Top
Minimum Volume
0.5 mL
Instructions
Note: 1. To test for adrenal cortisol insufficiency, Addison’s disease, dexamethasone suppression, decadron suppression, cortisol stimulation or cortrosyn stimulation see Cortisol Stimulation Study. 2. To test for adrenal cortical hyperfunction (Cushing’s syndrome) see Cortisol AM and Cortisol PM.
Specimen Stability
| Specimen Type | Temperature | Time |
| Serum SST or Red Top – Separated* | Room Temp | 8 hours |
| Refrigerated | 48 hours | |
| Frozen | >48 hours |
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis, plasma
Methodology
Chemiluminescence
Setup Schedule
Monday through Sunday; Continuously
Report Available
Same day
Reference Range
3.09-22.40 µg/dL
Performing Laboratory
North Colorado Medical Center Laboratory
