Arterial hypertension is one of the most common diseases of today. Hypertension is a major and independent risk factor for the development of cardiovascular and cerebrovascular diseases. Arterial hypertension can occur without any symptoms, what makes early detection of the disease, and constant blood pressure monitoring important in order to prevent the development of possible complications. In order to reduce the increase in morbidity, it is necessary to implement primary and secondary prevention measures, and to work on ongoing patient education. High blood pressure is most commonly diagnosed in middle aged people, and with age the frequency of arterial hypertension is increased. Blood pressure measurement is the basis for both diagnosis and monitoring of the effectiveness of therapy. Due to the number of people suffering from arterial hypertension, a complete and targeted approach to the patient is required, with the health visitor playing an important part. By establishing good communication in education and care for the patient, the quality of life of the patient and his/her family is raised. In this paper, a survey of 100 people with arterial hypertension was performed. The research was carried out by health visitors in the patient's home. Retrospective and prospective data collection was used. For the purpose of the survey, a questionnaire with 10 questions was used. Three blood pressure measurements were performed during the screening. The value of blood pressure was registered from the nursing documentation, then the value of blood pressure on the day of the survey was measured and the pressure value 15 days after the survey was also collected. The aim of the study is to examine the disease awareness of individuals with a history of arterial hypertension, and how well they are familiar with their disease. Also, the role of the health visitor in the prevention of hypertension is examined with the aim of better informing patients about arterial hypertension and regulating blood pressure. Based on the conducted research, it was established that patients with known hypertension were informed about their disease and aware of the importance of lifestyle changes. Also, the study has demonstrated statistically significant differences in systolic blood pressure values driven by a lowering of values in the follow-up measurement.