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Low Potassium (cont.)

Low Potassium Symptoms

Usually symptoms of low potassium are mild. At times the effects of low potassium can be vague. There may be more than one symptom involving the gastrointestinal (GI) tract, kidneys, muscles, heart, and nerves.

  • Weakness, tiredness, or cramping in arm or leg muscles, sometimes severe enough to cause inability to move arms or legs due to weakness (much like a paralysis)
  • Tingling or numbness
  • Nausea or vomiting
  • Abdominal cramping, bloating
  • Constipation
  • Palpitations (feeling your heart beat irregularly)
  • Passing large amounts of urine or feeling very thirsty most of the time
  • Fainting due to low blood pressure
  • Abnormal psychological behavior: depression, psychosis, delirium, confusion, or hallucinations.
Medically Reviewed by a Doctor on 3/27/2014

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Read What Your Physician is Reading on Medscape

Hypokalemia »

Potassium, the most abundant intracellular cation, is essential for the life of the organism.

Read More on Medscape Reference »


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