Cortisol, Free
0098391
Ordering Recommendation
 
Mnemonic
FCORTS
Methodology
Equilibrium Dialysis/Quantitative Electrochemiluminescent Immunoassay
Performed
Tue, Sat
Reported
1-5 days  
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
Specimen Required
Patient Preparation
  
Collect
Plain red or serum separator tube. Also acceptable: Lavender (EDTA) or pink (K2EDTA).  
Specimen Preparation
Centrifuge specimen. 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) Label plainly as a.m. or p.m. collection.  
Storage/Transport Temperature
Frozen.  
Unacceptable Conditions
Specimens collected in plasma separator tubes containing heparin. Grossly hemolyzed or heparinized specimens.   
Remarks
  
Stability
After separation from cells: Ambient: 4 hours; Refrigerated: 5 days; Frozen: 3 months  
Reference Interval
 
 
8-​10 a.m. collection 0.31-​1.19 µg/dL
4-​6 p.m. collection 0.15-​0.94 µg/dL
Interpretive Data


See Compliance Statement B: www.aruplab.com/CS
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)
82530
Components
Component Test Code*Component Chart NameLOINC
0098391Cortisol, Free2145-1
* 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