ARUP's Laboratory Test Directory

0070480: Aldosterone, Urine

Test Mnemonic: ALDO U
Methodology: Radioimmunoassay

Performed: Tue, Thu, Sat

Reported: 2-5 days

Specimen Required:  
Collect: 24-hour urine. Urine must be refrigerated during collection.

Transport: 4.5 mL aliquot from a 24-hour collection, frozen. (Min: 1 mL) Submit specimen in an ARUP Standard Transport Tube. Will accept refrigerated specimen with preservatives.

Pediatric Collection/Transport: 0.5 mL aliquot from a 24-hour collection, frozen.

Remarks: Add 1 g boric acid/100 mL urine. Specimens preserved with HCl or acetic acid are acceptable for this test. Specimen without preservative are acceptable if frozen immediately after collection. Record total volume and collection time interval on transport tube and test request form.

Stability: Ambient: 2 hours; Refrigerated (with preservative): 1 week; Frozen: 1 month

Reference Interval:
 
Test Number Components Reference Interval
 Aldosterone, UrineNormal diet: 6-25 µg/24 hours
Low salt diet: 17-44 µg/24 hours
High salt diet: 0-6 µg/24 hours

Normal urine values of aldosterone are dependent on sodium intake.

Normal sodium intake: 100-200 mEq
Low sodium intake: < 25 mEq
High sodium intake: > 200 mEq
 Creatinine (24-hour)  
 
Male Female
3-8 years: 140-700 mg/d
9-12 years: 300-1300 mg/d
13-17 years: 500-2300 mg/d
18-50 years: 1000-2500 mg/d
51-80 years: 800-2100 mg/d
81 years and older: 600-2000 mg/d 		3-8 years: 140-700 mg/d
9-12 years: 300-1300 mg/d
13-17 years: 400-1600 mg/d
18-50 years: 700-1600 mg/d
51-80 years: 500-1400 mg/d
81 years and older: 400-1300 mg/d

CPT Code(s):
82088

 

 

 
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