Test Catalog

Test ID: CCFR    
Cortisol/Cortisone, Free, Random, Urine

Useful For Suggests clinical disorders or settings where the test may be helpful

Investigating suspected Cushing syndrome (hypercortisolism), when a 24-hour collection is prohibitive (ie, pediatric patients).


Assisting in diagnosing acquired or inherited abnormalities of 11-beta-hydroxy steroid dehydrogenase (cortisol to cortisone ratio)


Diagnosis of pseudohyperaldosteronism due to excessive licorice consumption


This test has limited usefulness in the evaluation of adrenal insufficiency.


This test is not useful for evaluation of hypocorticalism.

Profile Information A profile is a group of laboratory tests that are ordered and performed together under a single Mayo Test ID. Profile information lists the test performed, inclusive of the test fee, when a profile is ordered and includes reporting names and individual availability.

Test IDReporting NameAvailable SeparatelyAlways Performed
COCORCortisol, Random, UNoYes
CRETRCreatinine, Random, UYes, (order RCTUR)Yes

Method Name A short description of the method used to perform the test

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

CRETR: Enzymatic Colorimetric Assay

NY State Available Indicates the status of NY State approval and if the test is orderable for NY State clients.


Reporting Name Lists a shorter or abbreviated version of the Published Name for a test

Cortisol/Cortisone, Free, Random, U

Aliases Lists additional common names for a test, as an aid in searching

Cortisol Free U
Cortisol, Random, Urine
Cortisol/Cortisone, Random U
Cortisone, Random, Urine
Free Cortisol
Free Urinary Cortisol
Urinary Free Cortisol