Elevated Admission Potassium Levels and 1-Year and 10-Year Mortality Among Patients With Heart Failure

Among hospitalized patients with HF, admission K > 5.5 mEq/L was independently associated with increased short- and long-term mortality, whereas serum K ≥ 5 mEq/L but ≤ 5.5 mEq/L was not independently associated with worse outcomes.