This test measures the level of Magnesium in the blood. Magnesium is a mineral that is important for strong bones and muscles, heart health, energy production, and nerve function. Magnesium levels are typically checked to evaluate kidney function, aid in the diagnosis of certain gastrointestinal disorders, or determine the severity of uncontrolled diabetes. Magnesium deficiency can be associated with malnutrition, malabsorption, chronic diarrhea, and alcoholism.
This test is typically ordered when someone is experiencing symptoms associated with Magnesium deficiency such as weakness or cramping in the muscles, confusion, seizures, or cardiac arrhythmias. Magnesium levels are typically checked when someone has a disorder which affects the kidneys. It may also be ordered to monitor people who are taking Magnesium supplements.
A Magnesium RBC test is also available which measures intracellular Magnesium levels. This type of test may detect deficiency sooner that a Magnesium blood test.
Turnaround for the Magnesium test is typically 1-3 business days.
The Magnesium blood test has no fasting requirements.
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