The aim of this study was to increase patients' adherence to the treatment of hypertension through the consultation training of nurses. Thirty-three nurses were included in the study. In the intervention group (IG), 19 nurses took part in a three-day residential training course on the Stages of Change model, Motivational Interviewing and guidelines for cardiovascular prevention, and recruited 153 patients. Sixteen nurses in the control group (CG) recruited 59 patients. A decrease in systolic and diastolic blood pressure and total cholesterol was noticed in both groups over the two years.Heart rate (p=0.027), body mass index (p=0.019), weight (p=0.0001), waist (p=0.041), LDL-cholesterol (p=0.0001), the waist hip ratio (p=0.024), and perceived stress (p=0.001) decreased to any great extent only in the IG. After two years, 52.6% of the patients in the IG (p=0.13) reached the target of ≤ 140/90 mmHg in blood pressure compared with 39.2% in the CG. For self-reported physical activity there was a significant (p=0.021) difference between the groups. The beneficial effects of the consultation training on patients' weight-parameters, physical activity, perceived stress and the proportion of patients who achieved blood pressure control emphasise consultation training and the use of behavioural models in motivating patients to adhere to treatment.