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Labcorp Oklahoma, Inc.
Test Directory


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Cortisol Free, 24-Hour Urine

Order Name CORT FR U
Test Number: 3602275
Revision Date 03/01/2023
Test Name Methodology LOINC Code
Cortisol Free, 24-Hour Urine
Liquid Chromatography/Mass Spectroscopy  
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 100 mL aliquot (10 mL aliquot ) Urine, 24-hour 24 hour Urine Container Room Temperature
Instructions Notes: 10 mL aliquot (Note: This volume Does NOT allow for repeat testing.)
Specimen Type: Plastic urine container
Container Detail: No Preserv
Specimen Storage: Room Temperature
Specimen Collection: Instruct the patient to void at 8 AM and discard the specimen. Then collect all urine including the final specimen voided at the end of the 24-hour collection period (ie, 8 AM the next morning) in a plastic bottle. Screw the lid on securely. (It is acceptable to collect cortisol with boric acid or HCl preservative.) HCl preservative or without a preservative.)
Special Instructions: State 24-hour volume.
Specimen Stability: Ambient: 14 days, Refrigerated : 14 days, Frozen: 14 days
GENERAL INFORMATION
Expected TAT 4 - 6 days  
Performing Labcorp Test Code 004432 
Notes Labcorp Test Code: 004432
CPT Code(s) 82530
Lab Section Reference Lab