Aldosterone, 24-Hour Urine with Creatinine

Test Code

Quest Code

CPT Codes
82088, 82570


CPT code 81050 may be added at an additional charge for volume measurement

Preferred Specimen
1.5 mL 24 hour urine collected in a 24-hour urine container

Minimum Volume
0.8 mL

Other Acceptable Specimens
Random urine collected in a (no preservative) container • 24 hour urine collected in a 24-hour urine container with 10 g Boric acid

Record 24-hour urine volume on test requisition and urine vial. Refrigerate during and after collection.
Reference ranges do not apply to random urine samples.

Transport Container
Transport tube

Transport Temperature
Room temperature

Specimen Stability
Room temperature: 7 days
Refrigerated: 28 days
Frozen: 21 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Urine collected with HCl

Hydrolysis • Extraction • Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)

FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Setup Schedule
Tuesday, Sunday Night
Report available: 4 Days

Reference Range
See Laboratory Report

Clinical Significance
Aldosterone is a hormone produced by the adrenal glands. Patients with primary hyperaldosteronism exhibit hypokalemia, hypertension, and low direct renin concentrations.

Performing Laboratory
Quest Diagnostics Nichols Institute-San Juan Capistrano, CA
33608 Ortega Highway
San Juan Capistrano, CA 92675-2042

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.