Components Reference Intervals Aldosterone, Urine Normal diet: 6-25 ug/24 hrs Low salt diet: 17-44 ug/24 hrs High salt diet: 0-6 ug/24 hrs 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 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 Female 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

24 hr collection. No preservatives needed if specimen is refrigerated during collection and received in laboratory within 24 hours. Acceptable preservative of one (1) g boric acid added at start of collection and specimen should be refrigerated during 24 hr collection. HCL or acetic acid are accepted. Submit collection dates and time on requisition.