Test Details
Mnemonic
UALDO
Ordering Code
3670910
CPT-4 Code(s)
82088
Specimen Information
Collect
24 hour urine, must be refrigerated during collection
Specimen Preparation
Add 1.0 g boric acid/100 mL urine mix well and send 4.5 mL aliquot boric acid preserved urine in a sterile screw capped plastic urine container. Record total volume on test requisition and specimen label.
Alternate Specimen
6M HCl or Acetic acid preserved urine (pH adjusted to 2-4), refrigerate.
Unpreserved urine frozen immediately after collection.
Unpreserved urine frozen immediately after collection.
Minimum Volume
0.5 mL
Transport Temperature
Frozen
Stability
Room temperature: 2 hours
Refrigerated (with preservative): 5 days
Frozen: 30 days
Refrigerated (with preservative): 5 days
Frozen: 30 days
Methodology
Quantitative Radioimmunoassay
Reference Range
Aldosterone:
Normal diet: 6 - 25 µg/d
Low salt diet: 17 - 44 µg/d
High salt diet: 0 - 6 µg/d
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 yrs: 140 - 700 mg/d 140 - 700 mg/d
9 - 12 yrs: 300 - 1300 mg/d 300 - 1300 mg/d
13 - 17 yrs: 500 - 2300 mg/d 400 - 1600 mg/d
18 - 50 yrs: 1000 - 2500 mg/d 700 - 1600 mg/d
51 - 80 yrs: 800 - 2100 mg/d 500 - 1400 mg/d
≥81 yrs: 600 - 2000 mg/d 400 - 1300 mg/d
Normal diet: 6 - 25 µg/d
Low salt diet: 17 - 44 µg/d
High salt diet: 0 - 6 µg/d
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 yrs: 140 - 700 mg/d 140 - 700 mg/d
9 - 12 yrs: 300 - 1300 mg/d 300 - 1300 mg/d
13 - 17 yrs: 500 - 2300 mg/d 400 - 1600 mg/d
18 - 50 yrs: 1000 - 2500 mg/d 700 - 1600 mg/d
51 - 80 yrs: 800 - 2100 mg/d 500 - 1400 mg/d
≥81 yrs: 600 - 2000 mg/d 400 - 1300 mg/d
Performing Laboratory
ARUP
New York DOH Approval Status
Yes