What is the most common arrhythmia?

Atrial fibrillation is considered the most common arrhythmia encountered in clinical practice. It is characterized by an irregular and often rapid heart rate that can lead to various complications, such as stroke and heart failure. The condition arises when the electrical signals in the atria become chaotic, leading to ineffective contraction and a loss of coordinated rhythm. Atrial fibrillation is particularly prevalent among older adults and those with underlying heart conditions. Its high incidence is a key reason it is often highlighted in discussions about arrhythmias and their management in both emergency and routine medical settings.

Understanding atrial fibrillation's clinical implications, including its risk factors, such as hypertension, heart disease, and certain lifestyle choices, is vital for effective patient care. Becoming familiar with this arrhythmia is essential for a Certified EKG Technician, as recognizing its patterns on an EKG can significantly influence patient treatment strategies.