Cortisol, Free by Equilibrium Dialysis/LC-MS/MS
2012697
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.
Submit With Order
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 Statement B: This test was developed and its performance characteristics determined by ARUP Laboratories. The U.S. Food and Drug Administration has not approved or cleared this test; however, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions.
Note
To convert to nmol/L, multiply µg/dL by 27.6.
CPT Code(s)
Components
| Component Test Code* | Component Chart Name | LOINC |
|---|---|---|
| 2012698 | Cortisol, Free by ED/LC-MS/MS | 2145-1 |
Aliases
- Hydrocortisone, Free