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| SPECIMEN REQUIREMENTS |
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| Container Type |
24-hour dark plastic urine container. |
| Specimen Type |
Frozen 24-hour urine collection. |
| Preferred Volume |
4.5 mL |
| Minimum Volume |
1 mL |
| Collection Procedure |
Collect a 24-hour urine in a 24-hour dark plastic urine container. Refrigerate during collection. |
| Specimen Processing |
Aliquot 4.5 mL of a well-mixed 24 hour urine collection into a leakproof plastic container and freeze. Record total volume. Store and transport frozen. |
| Required Patient Info |
Record total volume and collection time interval on transport tube and test request form. |
| Stability |
Room Temp 2 hours Refrigerated 7 days with preservatives Frozen (-20°C) 1 month |
| Unacceptable Conditions |
Random urine specimens. |
| Alternate Specimens |
Refrigerated urine samples that are preserved with 1 gram boric acid per 100 mL urine and specimens preserved with 6N HCl or acetic acid to pH 3.0-4.5. |
| Reference Laboratory |
ARUP |
| Reference Lab Test Code |
70480 |
| CPT Codes |
82088 |
| Test Schedule |
Tue, Thu, Sat |
| Turnaround Time |
5-9 days |
| Method |
RIA |
| Test Includes |
Time, h; Volume, mL, Aldosterone, Urine, ug/d; Creatinine, Urine, mg/dL; Creatinine, Urine, mg/d. |
| Reference Ranges |
Collection Period h
Volume mL
Aldosterone, Urine
Normal diet 6-25 ug/d
Low salt diet 17-44
High salt diet 0-6
Normal urine values of aldosterone
Normal sodium intake 100-200 mEq
Low sodium intake LT 25 mEq
High sodium intake GT 200 mEq
Creatinine, Urine mg/dL
Creatinine, Urine mg/d
M 0-2 yrs Not established
3-8 yrs 140-700
9-12 yrs 300-1300
13-17 yrs 500-2300
18-50 yrs 1000-2500
51-80 yrs 800-2100
81+ yrs 600-2000
F 0-2 yrs Not established
3-8 yrs 140-700
9-12 yrs 300-1300
13-17 yrs 400-1600
18-50 yrs 700-1600
51-80 yrs 500-1400
81+ yrs 400-1300 |
:: Interface Codes ::| type | order code | test description | result code | result description | units | decimal places | loinc code | | o | 84999.Z18 | Aldosterone, Urine Quant | | r | 84999.Z18 | Aldosterone, Urine Quant | 82088.Z1 | Aldosterone, Urine | ug/d | 1 | 1765-7 | | r | 84999.Z18 | Aldosterone, Urine Quant | 82088.Z2 | Time | hr | | 13362-9 | | r | 84999.Z18 | Aldosterone, Urine Quant | 82088.Z3 | Total Volume | mL | | | | r | 84999.Z18 | Aldosterone, Urine Quant | 82570.Z2 | Creatinine, Urine - mg/day | mg/d | 0 | 2162-6 | | r | 84999.Z18 | Aldosterone, Urine Quant | 82570.Z3 | Creatinine,Urine-mg/dL | mg/dL | 0 | 2161-8 |
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