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Cortisol
Test CodeLAB61
Alias/See Also
1231100297
CPT Codes
82533
Includes
CORTISOL, TOTAL
Preferred Specimen
CLINIC COLLECTIONS: Green Lithium Heparin tube (Gel separator preferred)
Minimum Volume
CLINIC COLLECTIONS: 0.5 mL plasma
Instructions
CLINIC COLLECTIONS: Collect 0.5 ml plasma in Green Lithium Heparin tube (Gel separator preferred). Must be spun within 2 hours after collection. If no gel separator, plasma must be pulled off cells within 2 hours.
If collecting with AST, ALT, VD25, K+, or LDH, label routes to Gold/SST. Collect 1.0 mL of serum in Gold/SST. Must be spun within 2 hours after collection.
If collecting with AST, ALT, VD25, K+, or LDH, label routes to Gold/SST. Collect 1.0 mL of serum in Gold/SST. Must be spun within 2 hours after collection.
Transport Temperature
Refrigerated
Specimen Stability
Refrigerated (2 - 8°C): ≤ 14 days
Frozen (-10°C or colder): ≤ 30 days
Frozen (-10°C or colder): ≤ 30 days
Methodology
Abbott Alinity
Reference Range
AM CORTISOL
3.70-19.4 ug/dL
PM CORTISOL
2.90-17.3 ug/dL
3.70-19.4 ug/dL
PM CORTISOL
2.90-17.3 ug/dL
Performing Laboratory
LITTLE ROCK LABORATORY FORT SMITH LABORATORY
Last Updated: August 26, 2026
