Measures the amount of magnesium in the blood.

Magnesium levels are measured to help determine kidney issues and can also be used to help measure the severity of uncontrolled diabetes as well as gastrointestinal disorders. Magnesium levels are often checked after prolonged periods of low calcium and/or potassium. Those who experience symptoms such as fatigue, confusion, muscle cramps, irregular heart beat and twitching may need to have their magnesium levels checked.

Low levels may indicate poor diet, gastrointestinal disorder, chronic diarrhea, long-term or excessive diuretic use and diabetes. Low levels may also be seen in burn victims or in post surgery instances. Some pregnant women may also experience low levels.

High levels of magnesium are normally associated with dehydration, hypothyroidism, kidney failure, hyperparathyroidism, Addison disease and excess laxative use.

Recommended with Magnesium

• Urinalysis
• Potassium

Is Fasting Required? No

More Information: http://www.questdiagnostics.com/testcenter/TestDetail.action?ntc=622