24 Hour Urine, Aldosterone

Synonyms

  • ALDOSTERONE, URINE
  • ALDOSTERONE, URINE, 24 HOUR
  • LAB354

Cerner Name

Aldosterone Urine

Clinical Info

Study of adrenocortical-renin-angiotensin system; adrenal cortical function test; evaluate renal hypertension; diagnose Conn syndrome (primary aldosteronism); evaluate hypokalemia with hypertension

Specimen Sources

Urine, Catheter Urine, Clean Catch

Specimen Types

Urine

Specimen Volume

10 ml From 24 Hr Urine container (2 mL min)

Container

24hr Ur No Preserv

Collection Instructions

Container/Tube: 24 hr urine container no Preservative
                                  Alternate 1 gm Boric Acid maybe added as preservative for other tests.
Specimen: 10 ml From 24 Hr Urine container (2 mL min) Adjust pH - pH must be 4 to 8.
Transport Temperature: Refrigerated
Note; Sample will be rejected if <2 pH.
Patient Preparation If patient is taking diuretics, antihypertensive drugs, cyclic progestational agents, estrogen, or licorice, results for aldosterone may not be interpretable. Patient should be on a diet containing 135 mmol (3 g) sodium per day for at least two weeks and preferably 30 days prior to testing.

Transport Instructions

Refrigerated

Specimen Stability

Room temperature: 7 days
Refrigerated: 28 days
Frozen: 14 days

Methodology

Liquid chromatography/tandem mass spectrometry (LC/MS-MS)

Days Performed

Performing Laboratories

LabCorp

CPT

82088
 
LOINC Code:  1765-7

PDM

5900229

Results
Component Name Base Name Common Name External Name
ALDOSTERONE, URINE ALDOSTERUR ALDOSTERONE URINE Aldosterone, Urine
ALDOSTERONE, URINE INTERVAL ALDOURINV ALDOSTERONE URINE INTERVAL Aldosterone, Urine Interval
ALDOSTERONE 24 HR ALDOUR24H ALDOSTERONE 24H UR Aldosterone 24 Hr
ALDOSTERONE 24 HR VOLUME ALDOSTERURVO ALDOSTERONE 24H UR VOLUME Aldosterone 24 Hr Volume

Result Interpretation

• Pediatric:1,2
− 0 to 3 days: 0.00−5.00 μg/24 hours
− 4 days to 10 years: 0.00−8.00 μg/24 hours
− >10 years: 0.00−19.00 μg/24 hours
• Adults:
− Low sodium intake: 20.00−80.00 μg/24 hours
− Normal sodium intake: 0.00−19.00 μg/24 hours
− High sodium intake: 0.00−12.00 μg/24 hours

   

 Post Florinef™ or IV saline supression

 5 mcg/24 hours or less

   

Creatinine, 24 Hour Urine

 Age  (g/24 h)

<3 years:  Not established

 3-8 years: 0.10-0.80

 9-12 years: 0.20-1.40

13-17 years: 0.40-1.90

>17 years: 0.50-2.15 

 

TAT: 7 - 10 Days
 

Forms
LAB354 build edit