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Cortisol, Free, LC/MS/MS, Second Void Urine
Test Code90582
CPT Codes
82530, 82570
Includes
Creatinine, Random Urine
Preferred Specimen
2 mL random urine, no preservative collected in a standard urine transport container
Minimum Volume
0.5 mL
Instructions
Second a.m. urine
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
Room temperature: 14 days
Refrigerated: 21 days
Frozen: 90 days
Refrigerated: 21 days
Frozen: 90 days
Methodology
Colorimetric (C) • Kinetic • Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Setup Schedule
Set up: Mon-Fri; Report avaialbe: 2-6 days
Clinical Significance
Urinary free cortisol is useful in the detection of patients with Cushing's syndrome for whom free cortisol concentrations are elevated.