Magnesium - urine
Last updated: Monday, 22, March, 2004
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| Item | Process |
|---|---|
| Specimen | 24 hour urine collection. |
| Method | Spectrophotometry, atomic absorption spectrophotometry. |
| Reference Interval | 2.5-8.0 mmol/24 hours (related to daily intake). |
| Application | Confirmation of suspected urinary magnesium loss. |
| Interpretation | Decreased urinary magnesium in a patient with hypomagnesaemia indicates a non-renal cause. |
| Reference | Ryan MF. Ann Clin Biochem 1991; 28: 19-26. |