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Cortisol, AM, Serum
Test CodeCortisol AM - NCMC
CPT Codes
82533
Preferred Specimen
In-patient: 1 mL plasma from Green top (Lithium Heparin)
Out-patient: 1 mL serum from SST
Out-patient: 1 mL serum from SST
Minimum Volume
0.5 mL from serum from Serum Gel or Red Top
Instructions
To test for adrenal cortical hyperfunction (Cushing’s syndrome)
- Inpatients: Obtain a cortisol a.m. at 8 a.m. on day 1 (Cortisol AM), and a cortisol p.m. at 8 p.m. on day 1(Cortisol PM). At 11 p.m. on day 1, give patient a 1 mg tablet of dexamethasone (Decadron®). Obtain cortisol a.m. at 8 a.m. on day 2 (Cortisol AM)
- Outpatients: Contact Outpatient Oncology at 970-378-3807 to schedule test.
Specimen Stability
| Temperature | Time |
| Room Temp | 24 hours |
| Refrigerated | 4 days |
| Frozen | 12 months |
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis
Methodology
Chemiluminescence
Setup Schedule
Monday through Sunday; Continuously
Report Available
Same day
Reference Range
4.8-19.5 µg/dL
Performing Laboratory
North Colorado Medical Center Laboratory
