Heart rhythm problems, often known as arrhythmia, is a general term for heart conditions that affect the conduction or generation of heart impulses. Arrhythmias are one of the most common reasons for visits to the doctor in routine cardiology practice. Arrhythmias can affect anyone at any age, and their prevalence increases as people age. When caring for and providing health care to patients with cardiac arrhythmias, the nurse must have a high level of qualifications, that is, she must be highly trained and educated. Both the patient and the nurse benefit when a nursing history is taken, problems are identified, and specific medical techniques are used. The patient will feel safer, and the nurse will know that she has fulfilled all her obligations. In addition to providing the patient with the necessary care and acting as a link between the patient and the doctor, the nurse in the coronary unit is also responsible for monitoring the patient's condition minute by minute and initiating therapy in accordance with their areas of expertise. For a patient with arrhythmia, communication with a nurse or technician is essential because she can answer his questions and direct him to a healthy lifestyle. In order for the nurses and technicians working in the coronary care unit to remain motivated, good cooperation, mutual trust and understanding, as well as the possibility of introducing new ideas that will be interesting for work, are necessary.