24 Hour Urine, Aldosterone Build info

Synonyms

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

Short Name

ALDOSTERONE, 24U

Procedure Master Number

LAB354

Procedure ID

35203

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 Type

Urine

Container

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 Laboratory

LabCorp

CPT

82088
 
LOINC Code:  1765-7

PDM

5900229

Results