Magnesium (urine)


Alternative names, keywords

Urine magnesium output, urine Mg

Samples required

24h urine collection - click here for printable instructions

24 hour urine collection in acidified container.

Test indications


Factors affecting test performance/ results

No specific interferences noted.

Results should always be assessed in conjunction with the patient’s medical history, clinical examination and other findings.

Reference range

3 - 5 mmol/ 24h

Source: Roche Cobas® Magnesium Gen.2 kit insert, 03-2016, V11.0

Turnaround time

1 week


Biochemistry (Automation)