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Test Code
CORED
Test Name
Cortisol, Free by Equilibrium Dialysis
CPT Codes
82530
Expected Turnaround Time
5 - 10 days
Clinical Utility

Cortisol is the primary glucocorticoid in humans, affecting glucose control, inflammation, and response to stress.
Specimen and Container Info

Specimen Type: Serum

Collection Container: Gold Top, Serum Separator

Alternate Collection Container: Red Top, Plain

Desired Specimen Volume: 1.6 mL
Collection Instructions
  1. Collect specimen in gold top, serum separator tube via venipuncture
Processing and Submission Instructions
  1. Separate serum from cells within 2 hours of collection.
  2. Transfer 1.6 mL of serum to a LabCorp PP transpak frozen purple tube.
Transport Instructions

Transport to the laboratory frozen. 
Stability Requirements

Room Temperature

 7 days

Refrigerated

7 days

Frozen

6 months

Freeze/Thaw Cycles

 Stable x6
Causes for Rejection
  • Hemolysis
  • Icteric
  • Lipemic sample
Methodology
Equilibrium Dialysis/Quantitative High Performance Liquid Chromatography-Tandem Mass Spectrometry
Reference Intervals

See patient report.
Limitations

Results of this test are for investigational purposes only. The performance characteristics of this assay have been determined by LabCorp. The result should not be used as a diagnostic procedure without confirmation of the diagnosis by another medically established diagnostic product or procedure.
Reference Lab
Labcorp Of America Holdings
Testing Schedule
Routine, 1 time per week
The American Medical Association (AMA) Current Procedural Terminology (CPT) codes published by HNL Lab Medicine are guidelines and are intended for informational purposes only. CPT coding is the exclusive responsibility of the billing entity. View the Terms.
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