Unusual Heartbeat:
Unusual heartbeat is a medical condition known as arrhythmias, which causes persistent irregular heart beating. Usually, arrhythmias are harmless and do not cause any serious problem, but in the case of hyperkalemia, the frequent arrhythmias may result in heart attacks. The excess levels of potassium in the blood tend to stop the proper functioning of heart muscles which causes irregular beating of heart, and there is a lack in oxygen supply to the blood. In severe cases, the irregular heart beating paralyzes the heart resulting in cardiac arrest, making the heart unable to pump blood.