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hyperkalemia (hi″pәr-kә-le´me-ә)   abnormally high potassium concentration in the blood, most often due to defective renal excretion, as in kidney disease, severe and extensive burns, intestinal obstruction, or Addison disease. When excessive, this can cause heart abnormalities with eventual cardiac arrest and respiratory paralysis. Early symptoms may include muscular weakness, tingling of the hands, feet, and tongue, and a slow, irregular pulse. adj., hyperkale´mic., adj.




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