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HelpCortisol, Plasma
Additional Codes
Epic# -
LAB61
Cerner name(s):
- Cortisol
Performing Lab(s)
Memorial-Belleville & Memorial-Shiloh
Methodology
Quantitative Chemiluminescent Immunoassay
Specimen Requirement (s)
Specimen Type: plasma (preferred) or serum
Container/Tube: mint green LiHep tube (preferred), red top or SST (yellow or marble)
Specimen Volume: 2 mL
Specimen Minimum Volume: 1 mL
Collection Instructions: Morning and afternoon specimens are desired. Prednisone and prednisolone can interfere with this assay by causing a false-positive reaction.
Day(s)/Shift(s) Test Set Up and Turnaround Time
Sunday through Saturday
Hours: 24 hours
Turnaround Time:
STAT: No
Routine: less than 8 hours from receipt.
Transport and Stability
Transport temperature: Ambient to lab
Analyte Stability:
Ambient: 1 week
Refrigerated: 5 days
Frozen: 3 months
Reference Values
MORNING
4.8 - 19.5 mcg/dL
AFTERNOON
Half of morning value
Note: This analyte undergoes marked diurnal variation. Reference values indicated apply to morning specimens.
CPT/LOINC Codes
82533