Aim: This study aims to develop a nursing approach based on Pender’s Health Promotion Model for a case admitted to the clinic with a diagnosis of preeclampsia.Methods: A.U, thirty-two years old and 34+1 weeks pregnant. She was hospitalized in the clinic with the diagnosis of preeclampsia. An interview with the patient was conducted on the second day of hospitalization. After obtaining the necessary consent, data were collected using the data collection form.Results: In the case where care was planned using Pender’s Health Promotion Model, the priority areas were identified as “Physical activity, nutrition, stress management, and perception of childbirth. The nursing diagnoses of “Health Management, İneffective (İndividual)” “Nutrition, imbalanced: more than body requirements”, “Activity intolerance”, “Stress overload”, “Low Self-Esteem, situational”, “Knowledge, deficient”, “Risk for Maternal–Fetal dyad, risk for disturbed”,“Readiness for enhanced Childbearing process”,“Readiness for Enhanced Health management”were addressed, and nursing interventions were planned to achieve the behavioral change outcomes, which are the primary goals of the model. It is crucial to effectively manage the increased stress and anxiety levels in individuals due to the rise in risk factors and uncertain processes during pregnancy. Therefore, it is essential for nurses to adopt a holistic and supportive approach during care.Conclusion: Within the framework of Pender’s Health Promotion Model, all components of the model should be considered to provide care and counseling tailored to the individual’s needs, aiming to achieve positive behavioral outcomes. The use of models in nursing should be increased for more systematic and high-quality patient care.