Cortisol, Free and Cortisone, 24 Hr with Creatinine:
Fasting Required: No
Lab: Quest Diagnostics
Specimen: Urine, 24 hour
Results: Average processing time 4-7 days
Note: Result turnaround times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.
Includes: Creatinine
Patient Instructions: A collection jug should be picked up from your local Quest Patient Service Center. This is a 24-hour collection, with the exception of the first morning void. Collect all urine after that for a full 24-hours. Specimen must remain refrigerated during the collection period.
Description: Urinary free cortisol is useful in the detection of patients with Cushing's syndrome for whom free cortisol concentrations are elevated.
Lab: Quest Diagnostics
Specimen: Urine, 24 hour
Results: Average processing time 4-7 days
Note: Result turnaround times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.
Includes: Creatinine
Patient Instructions: A collection jug should be picked up from your local Quest Patient Service Center. This is a 24-hour collection, with the exception of the first morning void. Collect all urine after that for a full 24-hours. Specimen must remain refrigerated during the collection period.
Description: Urinary free cortisol is useful in the detection of patients with Cushing's syndrome for whom free cortisol concentrations are elevated.