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Test Code
CBGFC
Test Name
Cortisol, Free, Total With CBG
CPT Codes
82533, 84449
Included Tests
  • Cortisol Binding Globulin
  • Cortisol
  • Free Cortisol
  • Percent Free Cortisol
Expected Turnaround Time
6 -12 days
Specimen and Container Info

Specimen Type: Serum

Collection Container: Gold Top, Serum Separator

Alternate Collection Container: Red Top, Plain

Desired Specimen Volume: 1 mL
Collection Instructions
  1. Collect a gold top, serum separator tube via venipuncture.
Processing and Submission Instructions
  1. Separate serum from cells within one hour of collection.
  2. Transfer 1 mL of serum to a pp transpak frozen purple tube.
  3. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.
Transport Instructions

Transport to the laboratory frozen. 
Stability Requirements

Room Temperature

1 day

Refrigerated

1 day

Frozen

1 year
Methodology
Hplc/Tandem Mass Spectrometry; Radioimmunoassay (Ria); Calculation Of Free Cortisol
Reference Intervals

See patient report.
Reference Lab
Labcorp Of America Holdings
Testing Schedule
Varies
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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