Casandra
Casandra Test Code QD30720Version 1 (DRAFT)
Performing Lab
Cortisol, Free and Total, LC/MS
Clinical Use
Order TestUse
Free cortisol is useful in the detection of patients with Cushing's syndrome for whom free cortisol concentrations are elevated. This reflects an intended clinical use in evaluating disorders of adrenal cortisol regulation.
Special Instructions
Not provided.
Limitations
Not provided.
Test Details
Methodology
Mass Spectrometry
Biomarkers
2 components
Cortisol, Total, LC/MS/MSCortisol, Free, LC/MS/MS
LOINC Codes
Order Codes
- 2143-6
- 2145-1
Result Codes
- 2143-6
- 2145-1
Result Turnaround Time
2-6 days
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Serum
Volume
1 mL (0.5 mL minimum) in each of two separate red‑top tubes (no gel)
Minimum Volume
0.5 mL in each of two separate tubes
Container
red‑top tube (no gel); alternate EDTA (lavender‑top) tube for plasma
Collection Instructions
Submit in two separate tubes, with 1 mL (0.5 mL minimum) in each tube
Causes for Rejection
Gross hemolysis; serum separator tube; received room temperature
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 48 hours |
| Refrigerated | 7 days |
| Frozen | 1 year |