Serum Magnesium Test

The Serum Magnesium Test at Pamel Laboratories measures the concentration of magnesium in your blood — a crucial mineral needed for muscle and nerve function, heart rhythm regulation, bone strength, and energy production. Magnesium also plays a key role in calcium and potassium balance, and in over 300 enzymatic reactions in the body.

This test is important in the evaluation of electrolyte imbalances, kidney disorders, cardiac conditions, and chronic illnesses.

What the Test Measures:

• Magnesium level in the blood

• Helps assess muscle, nerve, bone, and heart function, and electrolyte regulation

Purpose of the Test:

• Diagnose and monitor:

  • Magnesium deficiency (hypomagnesemia)

  • Magnesium excess (hypermagnesemia)

  • Kidney disease

  • Chronic diarrhea or malabsorption

  • Malnutrition or alcoholism

  • Electrolyte disturbances (esp. calcium and potassium)

• Evaluate symptoms such as:

  • Muscle cramps or spasms

  • Tingling or numbness

  • Fatigue or weakness

  • Irregular heartbeat

  • Seizures (in severe cases)

Sample Type: Blood sample (serum)

Turnaround Time: Same day (within a few hours)

Important Notes:

• Low magnesium levels can lead to cardiac arrhythmias, seizures, and neuromuscular irritability

• High magnesium may occur in renal failure or excessive magnesium supplementation

• Best interpreted alongside calcium, potassium, and phosphate levels