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Hypokalemia – low serum potassium level

  • Potassium levels of less than 3.5 mEq/L in the blood are diagnostic of hypokalemia
  • Causes of hypokalemia may result from excessive loss due to diuretic use, severe vomiting, or diarrhea.
  • These levels of potassium alter membrane potential, which may result in dizziness, hypotension, cardiac arrhythmias, muscle weakness, and leg cramps.
  • Decreased smooth muscle motility contributes to thirst, nausea, anorexia (loss of appetite), and abdominal distention.

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