24 Hour Urine, Cortisol Free

Synonyms

• CORT24 FREE
• CORTISOL 24 HR URINE FREE
• LAB11663

Cerner Name

Cortisol 24 Hr Urine Free

Clinical Info

Preferred screening test for Cushing syndrome
Diagnosis of pseudo-hyperaldosteronism due to excessive licorice consumption
Test may not be useful in the evaluation of adrenal insufficiency

Specimen Sources

Bladder Kidney, Left Kidney, Right Ureter, Left Ureter, Right Urine, Catheter Urine, Clean Catch Urine, Foley Urine, Voided

Specimen Types

Urine

Specimen Volume

5 mL 24 hr urine collection with 10 g of boric acid or 50 % Acetic Acid as preservative at the start of collection (3 mL min)

Container

24hr Ur 10g Boric Ac

Collection Instructions

Container/Tube: Plastic, urine tube
Specimen: 5 mL 24 hr urine collection with 10 g of boric acid or 50 % Acetic Acid as preservative at the start of collection (3 mL min)
Collection Instructions:
1. Collect urine for 24 hours.
2. Add 10 g of boric acid as preservative at start of
collection.
Transport Temperature: Refrigerated
Stability: 7 Days Room Temperature
14 Days Refrigerated
28 Days Frozen

Transport Instructions

Refrigerated

Specimen Stability

7 Days Room Temperature
14 Days Refrigerated
28 Days Frozen

Methodology

Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)

Days Performed

Monday through Friday; 4 p.m.

Performing Laboratories

Mayo Medical Laboratories

CPT

82530
LOINC Code: 43126-2

PDM

5900038

Results

Result Interpretation

Forms