Ordering Recommendation

Screen, diagnose, and monitor diseases associated with excess or deficient cortisol production.

Mnemonic
FCORTS TMS
Methodology

Equilibrium Dialysis/Quantitative High Performance Liquid Chromatography-Tandem Mass Spectrometry

Performed

Sun, Tue, Thu, Fri

Reported

2-5 days

New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation

Recommended collection times are 8-10 a.m. or 4-6 p.m. 

Collect

Plain red or serum separator tube, lavender (EDTA) or pink (K2EDTA).

Specimen Preparation

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)

Storage/Transport Temperature

Frozen.

Unacceptable Conditions

Grossly hemolyzed, icteric, lipemic or heparinized specimens. 

Remarks

Indicate time of draw on test request form and specimen tube.

Stability

After separation from cells: Ambient: Unacceptable; Refrigerated: 1 week; Frozen: 6 months

Reference Interval
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

Interpretive Data



Compliance Category

Laboratory Developed Test (LDT)

Note

To convert to nmol/L, multiply µg/dL by 27.6.

Hotline History
N/A
CPT Codes

82530

Components
Component Test Code* Component Chart Name LOINC
2012698 Cortisol, Free by ED/LC-MS/MS 2145-1
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • Hydrocortisone, Free
Cortisol, Free by Equilibrium Dialysis/LC-MS/MS