Potassium is a nutrient that helps support the normal function of the muscles and nerves in your body. If the amount of potassium in your bloodstream exceeds the recommended 3.6 to 4.8 milliequivalents per liter, or mEq/L, your doctor may diagnose you with a condition called hyperkalemia. Elevated potassium levels may arise if your kidneys aren't able to remove enough potassium from your body. Persistently high potassium levels may be a sign of kidney damage, severe muscle trauma, acidosis or Addison's disease. Seek additional care from your medical provider if you exhibit any of the signs and symptoms of elevated potassium levels to ensure you receive prompt and appropriate care.
No Signs or Symptoms
A slight elevation in the amount of potassium in your blood may not cause noticeable signs or symptoms. This lack of symptoms may make it difficult for your doctor to diagnose hyperkalemia. If you are concerned about your potassium levels, consult your doctor for further guidance.
Muscle Weakness
Potassium is involved in regulating when your muscles contract and relax. If your blood levels of potassium are unusually high, you may experience difficulty voluntarily controlling your muscles when you are engaged in physical activities. You may notice that you have difficulty lifting certain items, such as a grocery bag, or standing for prolonged periods of time. Severe hyperkalemia may result in paralysis--a condition in which you lose the ability to voluntarily control your muscle movements. Seek prompt care from your medical provider if you experience any unusual muscle weakness or become unable to move around normally without assistance.
Numbness or Tingling
High levels of potassium may also interfere with the way your nerves send signals through your body. Consequently, you may develop uncomfortable sensations of tingling or numbness in your hands, feet or across your skin. Sensations of numbness may negatively affect your ability to bend or flex the affected body region. If tingling or numbness persists or becomes severe, contact your doctor.
Irregular Heart Rate
Potassium also controls the rate at which your heart muscle contracts. Elevated potassium levels may result in heart rate irregularities, such as a weak or unusually slow pulse. In severe cases of hyperkalemia, your heart may abruptly stop beating--a life-threatening complication called cardiac arrest. Contact your physician immediately if you exhibit any signs of heart-related problems, including chest pain, breathing difficulties, nausea or heart rate changes.
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