Hypertension is one of the most important risk factors for cardiovascular morbidity and mortality. Effective hypertension management requires medication adherence, lifestyle modification, regular blood pressure monitoring, and self-management behaviors. Motivational interviewing is a counseling approach that may support behavior change and improve hypertension management.

This study aims to evaluate the effects of nurse-led individual motivational interviewing and family-involved motivational interviewing on blood pressure control in patients with hypertension. The study will be conducted as a single-center, three-arm, parallel-group, randomized controlled trial. A total of 180 patients with hypertension will be randomly assigned to one of three groups: usual care, individual motivational interviewing, or family-involved motivational interviewing.

Participants in the intervention groups will receive a 6-week nurse-led motivational interviewing program. In the family-involved motivational interviewing group, a family member who supports hypertension management will also participate in the sessions. Data will be collected at baseline, 6 weeks, and 18 weeks. The primary outcome is systolic blood pressure. Secondary outcomes include diastolic blood pressure, hypertension knowledge level, treatment adherence, and hypertension self-efficacy.