A magnesium test is used to measure the amount of magnesium in your blood.
Magnesium ↗ is a metallic element mainly found in the bones and is essential to life.
Abnormal magnesium levels can occur in conditions that affect the functioning of your kidneys or intestines.
A magnesium test may be recommended as part of a series of tests if you have symptoms such as nausea, weakness or cardiac arrhythmia ↗ (irregular heartbeat).
You may have abnormal levels of magnesium, calcium or potassium in your blood.
Read more about the magnesium test ↗ on Lab Tests Online UK.