Assertion: hyperkalemia's symptom | /r/HasProperty | atrioventricular
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text: These symptoms may include cardiac arrhythmias and electrocardiogram abnormalities such as ventricular tachycardia/ventricular fibrillation, paroxysmal atrial or junctional tachycardia, premature atrial and ventricular beats, sinus bradycardia, and atrioventricular block.4 Characteristic ECG changes in hypokalemia include ST segment depression, a decrease in T wave amplitude, and an increase in U wave amplitude.