Cortisol, Left Adrenal Vein
Also known as: CORT LAV
Use
The Cortisol, Left Adrenal Vein test is utilized for assessing adrenal venous cortisol levels as part of adrenal venous sampling procedures. This test helps differentiate primary aldosteronism subtypes and is crucial in the management of patients with Cushing syndrome, contributing to the diagnosis of adrenal hyperfunction. It provides essential data for evaluating adrenal gland disorders, helping to guide the appropriate therapeutic interventions.
Special Instructions
The adrenal venous sampling procedure is required. Proper handling of specimens involves allowing them to clot completely at room temperature and separating them from cells as soon as possible or within 2 hours of collection. Patients should follow specific preparation instructions to ensure accurate results.
Limitations
The test does not establish a reference interval, and therefore, results need to be interpreted within the context of the clinical picture by a healthcare professional. Cortisol measurements may be influenced by external factors affecting adrenal function, and repeated freeze/thaw cycles must be avoided as they can compromise sample integrity, affecting results.
FDA ApprovedNew York Approved
Methodology
Immunoassay (ECLIA)
Biomarkers
LOINC Codes
- 2143-6
Result Turnaround Time
1 hour
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
1 mL
Minimum Volume
0.4 mL
Container
ARUP Standard Transport Tube
Collection Instructions
Allow specimen to clot completely at room temperature. Separate from cells ASAP or within 2 hours of collection.
Patient Preparation
Adrenal venous sampling procedure is required.
Causes for Rejection
Repeated freeze/thaw cycles
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 24 hours |
| Refrigerated | 4 days |
| Frozen | 12 months |