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HelpTest Code 24MG Magnesium, urine, 24 hr
Additional Codes
| Epic Ordering Code | LAB406 |
| NBS code | LBC04637 |
| Service code | 31306 |
Specimen Requirements
Submit the following:
| Container: |
| 24 Hr Urine Container |
Processing Requirements
Specimen type: 24hr Urine
Volume: Cumulative urine collection over 24 hours
Specimen Stability
| Specimen Type | 24 hr urine |
|---|---|
| Ambient | 2 days |
| Refrigerate | 2 days |
| Frozen | 1 year |
Specimen Condition
| Haemolysis | Not applicable |
|---|---|
| Icterus | Not applicable |
| Lipaemia | Not applicable |
| Others | Not applicable |
Methodology
Enzymatic Assay
Days and Times Performed
24 hrs, TAT 1 day
Reference Interval
3.0 – 5.0 mmol/day
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Assessment of the cause of abnormal serum magnesium concentrations.
Update
Last updated 31/07/2026
LOINC Code Information
| Urine volume, total | 3167-4 |
|---|---|
| Magnesium, urine | 2598-1 |
| Magnesium, urine, 24 hr | 2599-9 |
Alias
24MG