Screen, diagnose, and monitor diseases associated with excess or deficient cortisol production.
Equilibrium Dialysis/Quantitative High Performance Liquid Chromatography-Tandem Mass Spectrometry
Sun, Tue, Thu, Fri
Recommended collection times are 8-10 a.m. or 4-6 p.m.
Plain red or serum separator tube, lavender (EDTA) or pink (K2EDTA).
Separate serum or plasma from cells within 2 hours of collection. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.6 mL)
Grossly hemolyzed, icteric, lipemic or heparinized specimens.
Indicate time of draw on test request form and specimen tube.
After separation from cells: Ambient: Unacceptable; Refrigerated: 1 week; Frozen: 6 months
|Age||Time of Collection||Reference Range|
|0 - 17 years||Not established|
|18 years of age and older||8-10 a.m. collection||0.21 - 1.04 µg/dL|
|18 years of age and older||4-6 p.m. collection||0.10 - 0.63 µg/dL|
Laboratory Developed Test (LDT)
To convert to nmol/L, multiply µg/dL by 27.6.
|Component Test Code*||Component Chart Name||LOINC|
|2012698||Cortisol, Free by ED/LC-MS/MS||2145-1|
- Hydrocortisone, Free