Laboratory Medicine

Test catalogue

Free Cortisol, 24Hrs Urine
Test Name Free Cortisol, 24Hrs Urine
Specimen Type / Requirements Container Type = 24 hour plain container bottle Minimum Testing Volume = 15mL urine from mixed urine Collection
Specimen Handling Collection Instructions: 24h urine collected in plain container without preservative (preferred). In-house stability studies have shown that urine collected in containers with acid (HCl or acetic acid) are also acceptable. Keep the collected urine refrigerated if possible and return to lab as soon as possible. Write your "start" and "end" date and time of collection on the collection label or requisition. Laboratory Staff Instructions: Centrifuge to remove cellular material. Stability: Stable for 8h at room temperature, refrigerated 1 week, frozen 3 months. Sample Rejection Criteria: Leaking, unlabeled specimens.
Required Documentation
Turnaround Time (TAT) 10 Days (batched)	Test Utilization
Reference Value 0-8 years: 4 - 55 nmol/day 9-12 years: 7 - 102 nmol/day 13-17 years: 11 - 155 nmol/day > or = 18 years: 10 - 124 nmol/day
Test Code 24UFC	Methodology Liquid Chromatography Mass Spectrometry (LC-MS/MS)
Testing Location SMH-Biochemistry	Other Information Last Update: July 23, 2024

Free Cortisol, 24Hrs Urine

Test Name

Free Cortisol, 24Hrs Urine

Specimen Type / Requirements

Container Type = 24 hour plain container bottle

Minimum Testing Volume = 15mL urine from mixed urine Collection

Specimen Handling

Collection Instructions: 24h urine collected in plain container without preservative (preferred). In-house stability studies have shown that urine collected in containers with acid (HCl or acetic acid) are also acceptable. Keep the collected urine refrigerated if possible and return to lab as soon as possible.

Write your "start" and "end" date and time of collection on the collection label or requisition.

Laboratory Staff Instructions: Centrifuge to remove cellular material.

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

Sample Rejection Criteria: Leaking, unlabeled specimens.

Required Documentation

Turnaround Time (TAT)

10 Days (batched)

Test Utilization

Reference Value

0-8 years: 4 - 55 nmol/day
9-12 years: 7 - 102 nmol/day
13-17 years: 11 - 155 nmol/day
> or = 18 years: 10 - 124 nmol/day

Test Code

24UFC

Methodology

Liquid Chromatography Mass Spectrometry (LC-MS/MS)

Testing Location

SMH-Biochemistry

Other Information

Last Update: July 23, 2024