Magnesium (Serum)

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Low levels of Magnesium can cause fatigue, muscle weakness, cramps, muscle spasms or convulsions.

Magnesium is second most common intracellular cation, which is after potassium. Magnesium is a key element in more than 300 enzyme processes. Serum magnesium should be tested when a patient could have deficiencies such as malnutrition, alcoholism, diarrhoea (more are included). Some deficiency symptoms of magnesium include:

  • muscle cramps
  • weakness
  • vertigo
  • depression


This test is available as a finger prick or vacutainer sample collection option. You can also choose to visit a BMI Hospital or have a Nurse Home Visit. Select option at checkout.