Volume; Sodium/L; Sodium/d; Creatinine/L; Creatinine/d; Aldosterone 24h Urine
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Aldosterone LC-MS/MS, 24 hr Urine
Test ID: ALDO U
Test
Method
LC-MS/MS
Report Includes
Specimens
Urine (24 hr)
Test Location
St. Michael's Hospital, 30 Bond Street, Toronto ON M5B 1W8
Test Version
25-Apr-2024
Specimen
Specimens
Urine (24 hr)
Sample Volume
10 mL
Collection & Handling
Collection Instructions
Collect 24 hour urine in container without preservative and keep refrigerated or on ice during collection.
Handling Information
Store and send frozen.
Additional Information
Provide Collection Date and Collection Volume (litres). Identify drugs administered within 2 weeks as some drugs have a low cross-reactivity in this assay.
Stability
| Refrigerated | 2 weeks |
|---|---|
| Frozen | 3 months |
Additional Stability Information
Avoid freeze thaw cycles.
Rejection Criteria
| Specimen | Urine collected with acid. |
|---|
Test Version
25-Apr-2024
Performance / Interpretation
Method
LC-MS/MS
Turnaround Time
10 days
Results
| Name | Units | Reference Range | Conversion Factor | |
|---|---|---|---|---|
| Volume | L |
|
mg/d x 0.00884 | |
| Sodium/L | mmol/L |
|
||
| Sodium/d | mmol/d |
|
mEq/d x 1.0 | |
| Creatinine/L | mmol/L |
|
||
| Creatinine/d | nmol/d |
|
||
| Aldosterone 24h Urine | nmol/d |
|
||
|
Sodium:Aldosterone Reference Intervals:
Sodium excretion 0 - 200 mmol/d: Urine Aldosterone 10 - 105 nmol/d Sodium excretion > 200 mmol/d: Urine Aldosterone < 39 nmol/d |
||||
Test Location
St. Michael's Hospital, 30 Bond Street, Toronto ON M5B 1W8
Test Version
25-Apr-2024
Interface / Setup
HL7 Interface Codes
| Order Code | Result Codes | Units |
|---|---|---|
| ALDO U | 7601Volume | L |
| 28021Sodium/L | mmol/L | |
| 28020Sodium/d | mmol/d | |
| 7637Creatinine/L | mmol/L | |
| 7602Creatinine/d | mmol/d | |
| 28022Aldosterone 24h Urine | nmol/d |
Test Version
25-Apr-2024