Lead to K ____, ______ which causes disturbed ______ and may cause heart failure.
a) Hypokalemia, bradycardia, conduction, tachycardia
b) Hyperkalemia, tachycardia, repolarization, bradycardia
c) Hypokalemia, tachycardia, conduction, arrhythmias
d) Hyperkalemia, bradycardia, repolarization, arrhythmias