You have selected to add a test that has special scheduling requirements which can not be ordered with other tests. Please complete your order and then place a new order.

Magnesium Test

Magnesium is a critical electrolyte that is necessary for proper muscle, nerve and enzyme function and is necessary for the body to make and use energy.  It also assists in the movement of other electrolytes, such as sodium and potassium, into and out of cells.  Low levels of magnesium are associated with cardiac arrhythmia.

The majority of magnesium in the body is found in bones and inside cells so the amount of magnesium in the blood is normally very small.  Magnesium levels can be easily increased through supplements or diet.  Foods that contain magnesium include whole grain products, leafy green vegetables, nuts and beans.  Some studies have also found that consuming foods rich in magnesium reduces the risk of stroke.

Test Details

The Magnesium Blood Test measures the level of magnesium present in your blood.

Learn More


Am I required to fast?

No, fasting is not required. There are no dietary or medicinal restrictions to take this test.

Is a doctor's order required?

No. You do not need to provide a doctor’s order to get lab testing done at Any Lab Test Now.

When will I get my test results?

Test results generally take between 24 to 72 business hours after your specimen is collected.

Do I need to make an appointment?

No. You can walk in for same day testing. We make it easy for you by offering work-friendly hours.

If I have questions about my tests results who should I contact?

We recommend you share your results with your physician.