Test directory: Cortisol, Free, 24Hr Urine

Ordering Code 814
Test Name Cortisol, Free, 24Hr Urine
Alias Unconjugated Cortisol
Preferred Specimen Urine, 24 Hour
Preferred Container 24 Hour Urine Container
No preservative (preferred)
Other Specimen/Container 24 Hr urine with acid (HCl, acetic acid, or boric acid) also acceptable.
Optimum Volume 20 mL
Collection Instructions Keep refrigerated during collection
Record entire 24 Hr Vol on container & requisition
Patient age & sex required on requisition.
Transport Requirements Oahu: Frozen
Airline: Frozen
Specimen Stability Ambient: 48 Hours
Refrigerated: 1 Week
Frozen: 5 Months
Rejection Criteria Received ambient at reference lab
Avail. Stat NO
Analytic Time Up to 7 Days
Methodology Liquid Chromatography Tandem Mass Spectrometry (LC/MS/MS)
Reference Lab  Quest Diagnostic Lab-NI

Reference range(s)

The reference ranges listed below are valid on this date of June 29, 2025.
Component Age Male Norm Male Critical Low Male Critical High Female Norm Female Critical High Female Critical Low Units Add'l info
Total Volume ALL See report.
Cortisol, Free ALL See report.
Creatinine, 24 Hr Urine ALL See report.