These substances in the blood that help regulate the proper balance of body fluids. Electrolyte levels are useful in detecting kidney, heart and liver disease, and the effects of certain medications (such as diuretics or some heart pills).

Sodium

Normal range:

  • Male: 135-146 mmol/L
  • Female: 132-148 mmol/L

Magnesium

Normal range adult: 1.6-2.4 mg/dL

Potassium

Normal range adult: 3.5-5.0 mmol/L

This information is about testing and procedures and may include instructions specific to Cleveland Clinic. Please consult your physician for information pertaining to your testing.