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Cortisol/Cortisone, Free, 24 Hour, Urine

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Secondary ID A test code used for billing and in test definitions created prior to November 2011


Reference Values Describes reference intervals and additional information for interpretation of test results. May include intervals based on age and sex when appropriate. Intervals are Mayo-derived, unless otherwise designated. If an interpretive report is provided, the reference value field will state this.


0-2 years: not established

3-8 years: 1.4-20 mcg/24 hours

9-12 years: 2.6-37 mcg/24 hours

13-17 years: 4.0-56 mcg/24 hours

> or =18 years: 3.5-45 mcg/24 hours



0-2 years: not established

3-8 years: 5.5-41 mcg/24 hours

9-12 years: 9.9-73 mcg/24 hours

13-17 years: 15-108 mcg/24 hours

> or =18 years: 17-129 mcg/24 hours


Use the factors below to convert each analyte from mcg/24 hours to nmol/24 hours:


Conversion factors

Cortisol: mcg/24 hours x 2.76=nmol/24 hours (molecular weight=362.5)

Cortisone: mcg/24 hours x 2.78=nmol/24 hours (molecular weight=360)