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Laboratory Medicine

Test catalogue

Free Cortisol, Random Urine

Test Name

Free Cortisol, Random Urine

Urine sample Specimen Type / Requirements

Container Type = Sterile Container

Minimum Volume = 5ml Urine

Specimen Handling

Collection Instructions: Random urine collected in red top vacutainer or sterile urine container.

Write your initials, date and time of collection on the collection label.

Stability: Stable for 8h at room temperature, refrigerated 1 week, frozen 3 months.

Laboratory Staff Instructions: Centrifuge to remove cellular material.

Sample Rejection Criteria: Leaking, Unlabeled specimens, or Non sufficient quantity (Not Sufficient Quantity) will be rejected.

Required Documentation

Turnaround Time (TAT)

10 Days (batched)

Test Utilization

Reference Value

0-2 yrs --- 0-50nmol/mmol creatinine

3-8 yrs --- 0-37 nmol/mmol creatinine

9-12 yrs ---0-23 nmol/mmol creatinine

13-17 yrs - 0-17nmol/mmol creatinine



>= 18yrs – 0-49nmol/mmol creatinine


>= 18yrs – 0-35nmol/mmol creatinine

Test Code



Competitive binding immunoassay

Testing Location


Other Information

Last Updated: September 30, 2019