Service Description

The Magnesium, 24-Hour or Random Urine test measures the amount of magnesium being excreted in the urine. It helps evaluate how the kidneys regulate magnesium and supports the assessment of magnesium imbalances in the body. Why it’s done: To determine the cause of low or high blood magnesium levels To evaluate kidney function and magnesium wasting disorders To investigate chronic diarrhea, malabsorption, or excessive magnesium loss To monitor patients taking diuretics or magnesium supplements Specimen Type: Urine (24-hour collection or random sample) Turnaround Time: Typically 2–3 business days Collection Available: In-office drop-off or home collection with instructions