Magnesium test

Page last reviewed: 13/07/2011

A magnesium test is used to measure the amount of magnesium in your blood. Your GP may suggest a magnesium test if you have symptoms such as nausea, weakness or cardiac arrhythmia (irregular heartbeat) that may be caused by abnormal levels of magnesium, calcium or potassium.

Content provided by NHS Choices and adapted for Ireland by the Health A-Z.

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