What are five carcliac conditions that change your EKG?

Five cardiac conditions that can alter an EKG include myocardial infarction (heart attack), which can cause ST-segment elevation or depression; atrial fibrillation, characterized by an irregularly irregular rhythm; ventricular hypertrophy, which may present with increased voltage and changes in the QRS complex; ischemia, often shown by ST-segment depression or T-wave inversions; and bundle branch blocks, which manifest as a prolonged QRS duration with specific morphology changes. Each of these conditions affects the heart's electrical activity, leading to distinct EKG patterns.