What does the Magnesium, Urine test measure?

Why is Magnesium, Urine measured?

Low urinary magnesium can indicate poor intake or redistribution, but serum or red-cell magnesium is preferred for assessing deficiency. High urinary loss occurs with diuretics, alcohol, and certain tubular disorders.

Reference ranges

Standard reference

Approximately 30–120 mg/g creatinine; homeostatic control is tight.

Functional medicine optimal

Mid-reference; clinical context and serum levels guide interpretation.

Units

mg/g creatinine, mmol/L

Reference ranges vary by laboratory and assay platform. Interpret in context of the issuing laboratory's stated range.