1% and 2.5%. It is associated with an increased mortality, whether due to hyperkalaemia itself or as a marker of severe illness, especially in those without chronic kidney disease. The word hyperkalemia comes from hyper- 'high' + kalium 'potassium' + ''-emia'' 'blood condition'.

Signs and symptoms

The symptoms of an elevated potassium level are generally few and nonspecific. Nonspecific symptoms may include

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