Aldosterone Left Adrenal Vein
Also known as: ALDO LAV
Use
The Aldosterone Left Adrenal Vein test is used to investigate primary and secondary aldosteronism and distinguish between bilateral idiopathic hyperaldosteronism (IHA) and aldosterone-producing adenomas (APA). This test is particularly significant in understanding the underlying causes of conditions like hyperaldosteronism, which affects blood pressure regulation due to excess production of the hormone aldosterone by the adrenal glands.
Special Instructions
Adrenal venous sampling procedure is required. Specific attention should be paid to patient preparation and specimen collection. Refer to the Endocrine Society recommendations for details on medications for hypertension control during confirmatory testing for primary aldosteronism.
Limitations
Potential factors that may lead to false-positive or false-negative aldosterone-renin ratio (ARR) results include improper patient preparation and uncontrolled hypertension. It is crucial to follow all preparation and collection recommendations to ensure the validity of the results.
New York Approved
Methodology
Immunoassay (CLIA)
Biomarkers
LOINC Codes
- 92897-8
Result Turnaround Time
1 day
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
1 mL
Minimum Volume
0.5 mL
Container
Serum Separator Tube (SST) or Plain Red
Collection Instructions
Separate from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube.
Patient Preparation
Adrenal venous sampling procedure is required.
Storage Instructions
Frozen
Causes for Rejection
EDTA plasma
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 8 hours |
| Refrigerated | 5 days |
| Frozen | 1 month |