CPT Code:


Test Type: Serum Kit Based
Stability Time:


Refrigerated: 5 days

Reference Range:
  • Optimal: <12.0 ng/dL
  • Borderline: 12.0-16.0 ng/dL
  • Increased Risk: >16.0 ng/dL


Aldosterone is a hormone secreted by the adrenal glands that regulates levels of sodium and potassium, fluid volume and blood pressure. Hyperaldosteronism is a disorder caused by excessive secretion of aldosterone by the adrenal gland and may contribute to the development and progression of cardiovascular disease, renal disease, and hypertension.

Methodology - Chemiluminescent Immunoassay (CLIA)

Collection Details:

Patient Preparation:

Patient Preparation

Blood should be drawn after an afternoon fast except water, and the patient should have been in the sitting position for at least 5 minutes.

Collection Instructions:

Preferred Specimen

1.0 mL serum (0.5 mL minimum) collected in serum separator tube (SST / Tiger Top)

Transport Temperature

Refrigerated (ship on frozen cold packs)