LabCorp Test

Magnesium Serum Test

Quick Overview

Measures the level of magnesium in the blood. Magnesium is an important electrolyte and needed for proper muscle, nerve, and enzyme function.

Test #001537

$29.00

Availability: In stock

Also Known As MAG; Mg
Preparation No special preparation required.
Test Results 1-2 days. May take longer based on weather, holiday or lab delays.

Magnesium helps the body use and make and is needed to move potassium and sodium into and out of cells.

A test for magnesium is done in order to:

  • Find a cause for nerve and muscle problems, such as irritability, muscle twitches, and muscle weakness.
  • Find the cause of symptoms, such as low blood pressure, nausea, diarrhea, dizziness, vomiting, muscle weakness, and slurred speech.
  • Find the cause of trouble breathing or heart problems, especially in people who have kidney disease.
  • Find the cause of a low potassium or calcium level that is not improving with treatment.
  • Look for changes in magnesium levels caused by medicines, including diuretics.
  • Check if those with heart problems need extra magnesium. Low magnesium levels may increase the chances of life-threatening heart rhythm problems.
  • Measure magnesium levels when it is being given for medical treatment.

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