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Test Code
ALDOS
Test Name
Aldosterone
CPT Codes
82088
Expected Turnaround Time
3 - 5 days
Clinical Utility

Approximately 1-2% of individuals with primary hypertension have primary hyperaldosteronism characterized by hypokalemia (low potassium) and low direct renin. Because serum aldosterone concentrations vary due to dietary sodium intake and body positions, some physicians prefer measurement of 24-hour urine concentrations for aldosterone.
Specimen and Container Info

Preferred Specimen Type: Serum

Alternate Specimen Type: Plasma

Preferred Collection Container: Red Top, Plain

Alternate Collection Container: Lavender Top (EDTA) or Green Top (Sodium or Lithium Heparin)

Desired Specimen Volume: 1 mL
Collection Instructions
  1. Collect a red top, plain tube via venipuncture.
  2. For "upright" samples wait at least a half hour after the patient sits up.
Processing and Submission Instructions
  1. Separate serum from cells.
  2. Transfer 1 mL of serum to a clear aliquot tube (screw cap).
Transport Instructions

Transport to the laboratory frozen. 
Stability Requirements

Room Temperature

4 days

Refrigerated

7 days

Frozen

28 days
Causes for Rejection
  • Moderate to gross hemolysis
  • Serum separator tube (SST)
Methodology
Chromatography/Mass Spectrometry
Reference Intervals

See patient report.
Alternate Names
  • Aldosterone, LC/MS/MS
Reference Lab
Quest Diagnostics Nichols Institute
Testing Schedule
Routine, Monday - Saturday
The American Medical Association (AMA) Current Procedural Terminology (CPT) codes published by HNL Lab Medicine are guidelines and are intended for informational purposes only. CPT coding is the exclusive responsibility of the billing entity. View the Terms.
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