Arterial hypertension is a consequence of a cardiac volume and total peripheral resistance. Arterial hypertension is diagnosed as elevation of systolic and diastolic blood pressure presumably higher than 140/90 mm/Hg and has proven comorbidity with a series of a cardiovascular diseases. Arterial hypertension is divided on primary, without known cause, and secondary hypertension, without the known cause. 90-95 % of a patient are diagnosed with a primary arterial hypertension. Arterial hypertension is most often diagnosed in a population 35-45 years of age. Regular blood pressure control is one of the most effective prevention methods regarding arterial hypertension. Arterial hypertension can be treated both pharmacologically and non-pharmacologically. Role the nurses have in the arterial hypertension treatment is the role of educators, which help the patients get acquainted with the consequences and ways of treating of an arterial hypertension. In this paper, nursing diagnosis of arterial hypertension are analyzed, together with goals and interventions, with special attention given to the diagnose of unawareness. With a quality education it is possible to cure the consequences of an arterial hypertension and to prevent new cases. The responsibility for a successful treatment of arterial hypertension is evenly distributed between the medical workers and the patients alike.