Electrocardiographic Changes in Patients With Hypokalemia and Their Correlation With Serum Potassium Levels

Abstract

Background: Dyselectrolytemias can cause significant changes in cardiac electrophysiology detectable through electrocardiography (ECG). Potassium in particular has a strong effect on the cardiac membrane potential, leading to characteristic rhythm variations when potassium levels are reduced or elevated. However, the degree of correlation between specific ECG changes and the severity of hypokalemia remains variably described in the literature.