A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #

Aldosterone, 24-Hour Urine with Creatinine

Test Code
ALDRQ


CPT Codes
<p>82088, 82570</p>

Includes
Creatinine

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


Preferred Specimen

Specimen Type: 24-Hour Urine

Collection Container/Type

Preferred: Unpreserved urine, collected for 24-hours

Acceptable: 10g Boric acid-preserved urne, collected for 24-hours

Submission Container/Tube: Sterile container

Specimen Volume: 1.5 mL

Collection Instructions: 

  1. Collect urine for 24 hours.
  2. If using, add Boric Acid at the beginning of collection.
  3. Refrigerate during and after collection.
  4. Record 24-hour volume on requisition and urine vial.

 

Specimen Type: Random Urine

Collection Container/Type: Unpreserved random urine

Submission Container/Tube: Sterile Container

Specimen Volume: 1.5 mL

Additional Information: Reference ranges do not apply to random urine samples.



Minimum Volume

0.8 mL



Other Acceptable Specimens
Random urine collected in a no preservative container (reference ranges do not apply to random urine samples) • 24-hour urine collected in a 24-hour urine container with 10 g Boric acid


Instructions
Record 24-hour urine volume on test requisition and urine vial. Refrigerate during and after collection.


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



Methodology

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

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.



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
Set up: Sun, Tues; Report available: 4-10 days


Report Available

3-9 days



Reference Range
Aldosterone, 24-Hour Urine
Random Sodium Diet
Agemcg/24 hours
2-7 years5.7 or less
8-11 years10.2 or less
12-16 years15.6 or less
Adults2.3-21.0
Oral sodium loading test (high salt diet for 3 days): 12 mcg/24 hrs or less*

*Funder JW, Carey RM, Mantero F, et al. The Management of Primary
Aldosteronism: Case Detection, Diagnosis, and Treatment: An Endocrine Society Clinical Practice Guideline. J Clin Endocrinol Metab. 2016; 101:1889-1916

Creatinine, 24-Hour Urine
<3 YearsNot established
3-8 Years0.10-0.80 g/24 h
9-12 Years0.20-1.40 g/24 h
13-17 Years0.40-1.90 g/24 h
>17 Years0.50-2.15 g/24 h


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




Last Updated: February 20, 2023


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.