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What is a Magnesium Urine?

Magnesium Urine is a laboratory test that measures the amount of magnesium present in a urine sample. It helps assess how the kidneys handle and excrete magnesium from the body. The test is needed to investigate abnormal blood magnesium levels, determine whether excessive magnesium is being lost through the kidneys, and evaluate possible causes of magnesium deficiency or imbalance, particularly in individuals with kidney or metabolic disorders.

Additional Information

Also known as/ Other names: 24‑Hour Urinary Magnesium, Urinary Magnesium Excretion Test, Magnesium, 24‑Hour Urine, Urine Magnesium Quantitative Test, Magnesium (Urine), Timed Collection
Parameters: 1
Recommended for: M/F/Others
Sample Type: Urine
Patient Preparation: No prior preparation is needed
Reports: Next Day

FAQs

What is magnesium?

Magnesium is an essential mineral involved in muscle contraction, nerve function, heart rhythm, bone health, and many biochemical processes.

What does high urine magnesium mean?

Increased urinary magnesium may indicate excessive renal magnesium loss. Certain medications, kidney conditions, metabolic disorders, or high magnesium intake can contribute to increased excretion.

What does low urine magnesium mean?

Low urinary magnesium may indicate that the kidneys are conserving magnesium, particularly when the body's magnesium stores are reduced.

Can kidney disease affect urine magnesium?

Yes. The kidneys regulate magnesium balance, so kidney disorders can alter how much magnesium is excreted in urine.

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