Atrial fibrillation is the most common arrhythmological heart disorder characterized by an irregular and rapid rhythm of atrial contractions. This can lead to serious complications, including stroke and heart disease. Management of atrial fibrillation requires a multidisciplinary approach, and nurses play a key role in the treatment of patients. The nurse's role includes educating patients about their disease, risk factors, and therapy, helping them understand atrial fibrillation. Also, nurses regularly monitor patients' vital signs, therapy effectiveness, and medication side effects to ensure patient safety and well-being. They provide emotional support and help patients face the challenges of the disease, and encourage them to adhere to preventive measures and promote a healthy lifestyle. In a team environment, they collaborate with physicians and other healthcare professionals to provide a comprehensive approach to atrial fibrillation treatment. Nursing care is essential for improving the quality of life of patients with atrial fibrillation, reducing the risk of complications and achieving optimal therapeutic outcomes. Its comprehensive nature, including education, monitoring, support and collaboration in a team environment, makes it an indispensable part of the care for these patients