Laboratory: Clinical Biochemistry
Test Name:
CORTISOL, FREE LC-MS/MS - (U)
Test Code: MIS8
Clinical Information:
Collection Devices:
Specimen Required:


Urine: 5.0 mL
Pediatric Urine: 3.0 mL
Referral:
Requisition:
Reference Values:
 
0 - 2 y: Not yet established
3 - 8 y: 1.4 - 20  μg/24 hours
9 - 12 y: 2.6 - 37
13 - 17 y: 4.0 - 56
≥ 18 y: 3.5 - 45
Conversion Factor, Cortisol:  μg/24 hours x 2.76 = nmol/24 hours (molecular weight 362.5)
Availability:
Within 5 Days
Within 5 days. Orderable by physicians specializing in endocrinology -authorized physicians only. Appropriate as a second level test for the evaluation of patients on synthetic corticosteroids that can affect immunoassay-based cortisol results.
See Also:
More Information:
Measure and record volume.  Store and ship specimen refrigerated temperature to Mayo Medical Laboratories.  Test ID:  CORTU (8546)