SUMMARY Cardiovascular diseases are among the leading causes of mortality in the world and thus represent a major public health problem. This group includes coronary artery disease, which is caused by the narrowing of the coronary arteries, and its most dangerous complication is an acute myocardial infarction. According to data from the World Health Organization, 17.9 million people die from them every year. With the development of the economy, changes in lifestyle, and the accelerated pace of work and life, the number of patients continues to grow every year. The gold standard in diagnosing and treating coronary artery diseases is the invasive method of coronary angiography. In order to achieve the best possible treatment outcome, adequate preparation of the patient for the procedure and postoperative care based on the patient's individual needs is necessary. Many patients feel discomfort and fear during hospitalization, especially when it comes to risks such as bleeding that can be a consequence of invasive methods. The nurse's role is to assist in the preparation and recovery of the patient, and with their professional and empathetic approach, ensure well-being and trust by providing emotional support.