Print this article
Share this page:
Also known as: Mg

At a Glance

Why Get Tested?

To evaluate the concentration of magnesium in your blood and to help determine the cause of abnormal calcium and/or potassium levels

When to Get Tested?

If you have symptoms (such as weakness, irritability, cardiac arrhythmia, nausea, and/or diarrhoea) that may be due to too much or too little magnesium or if you have abnormal calcium or potassium levels

Sample Required?

A blood sample taken from a vein in your arm

Test Preparation Needed?