Hyperkalemia

First Things First (assess & treat for the following)

  • Is the hyperkalemia real?
    • Laboratory error: repeat test
    • Pseudohyperkalemia: hemolysis, thrombocytosis, severe leukocytosis, fist clenching,
  • Is pt symptomatic?
    • Most pts are asymptomatic
    • Symptoms of hyperkalemia: generalized weakness, paralysis (severe)
    • Signs of hyperkalemia: ventricular arrhythmias
    • EKG changes: peaked T waves, shortened QT interval, flattening or absence of P waves, widened QRS complexes, sine waves (severe)

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Last updated: May 3, 2010