Magnesium test

Introduction

A magnesium test is used to measure the amount of magnesium in your blood.

Magnesiumis a metallic element that's found mainly in the bones and is essential to life.

Abnormal magnesium levels can occur in conditions that affect the functioning ofyour kidneys or intestines.

A magnesium test may be recommended as part of a series of tests if you have symptoms such as nausea, weakness orcardiac arrhythmia (irregular heartbeat).You may have abnormal levelsof magnesium, calcium or potassium in your blood.

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Content supplied by the NHS Website

Medically Reviewed by a doctor on 28 Nov 2016