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HelpTest Code ALAV Aldosterone, Left Adrenal Vein, Serum
Reporting Name
Aldosterone, LAVUseful For
Investigation using left adrenal vein specimen for:
-Primary aldosteronism (eg, adrenal adenoma/carcinoma and adrenal cortical hyperplasia)
-Secondary aldosteronism (renovascular disease, salt depletion, potassium loading, cardiac failure with ascites, pregnancy, Bartter syndrome)
Method Name
Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
SerumSpecimen Required
Patient Preparation: Spironolactone (Aldactone) should be discontinued for 4 to 6 weeks before testing. The plasma renin activity cannot be interpreted if the patient is being treated with spironolactone.
Collection Container/Tube:
Preferred: Red top
Acceptable: Serum gel
Submission Container/Tube: Plastic vial
Specimen Volume: 1.8 mL
Collection Instructions:
1. See Renin-Aldosterone Studies for detailed instructions.
2. The recommended collection time is 8 a.m., after the patient is active for approximately 2 hours. Try to collect the specimen as close to that time as possible and no later than 10 a.m.
3. Centrifuge and aliquot serum into a plastic vial.
Specimen Minimum Volume
1 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Refrigerated (preferred) | 28 days | |
| Frozen | 30 days | ||
| Ambient | 4 days |
Reject Due To
| Gross hemolysis | OK |
| Gross lipemia | OK |
| Gross icterus | OK |
Special Instructions
Reference Values
No established reference values.
Day(s) Performed
Monday through Friday
CPT Code Information
82088
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| ALAV | Aldosterone, LAV | 1763-2 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 6349 | Aldosterone, LAV | 1763-2 |