Praktik ilmu keperawatan didasarkan hasil riset dan inovasi terbaru. Kualitas asuhan keperawatan ditentukan dari level pendidikan perawat. Perawat spesialis keperawatan medikal peminatan sistem kardiovaskuler berperan pemberi asuhan, edukator, peneliti, dan inovator. Praktik residensi Ners spesialis dilaksanakan selama 2 semester yang bertujuan melakukan peran ners spesialis dengan pendekatan konservasi. Asuhan keperawatan pada gangguan sistem kardiovaskuler menggunakan pendekatan model konsep konservasi Myra Estrin Levine. Asuhan keperawatan pada 30 kasus resume dan 1 kasus utama pada ADHF. Active Cycle of Breathing Technique (ACBT) diterapkan pada pasien paska bedah jantung untuk pemulihkan fungsi paru paska bedah jantung. Proyek inovasi rehabilitasi jantung fase I pada pasien sindrom koroner akut untuk pemulihan toleransi aktivitas. Hasil analisis praktik bahwa model konsep konservasi efektif diterapkan pada gangguan sistem kardiovaskuler untuk mempertahankan konservasi holistik, ACBT mampu memulihkan fungsi paru pasien paska bedah jantung, dan penerapan rehabilitasi jantung fase I mampu toleran terhadap aktivitas, dan standard prosedur operasional dapat dipahami, mudah dilaksanakan oleh pasien dan perawat.

The nursing science practice is based on research results and the most current innovations. The quality of nursing care is determined by the nurses education level. Nurses of medical surgical nursing specialist, whose specialty are for cardiovascular system disorder, have some roles which are as a care provider, educator, researcher, and innovator. The clinical residency practice is conducted for 2 semesters and aims to implement the roles of specialist nurse by applying a conservation model approach. The nursing care on cardiovascular system disorders is using Myra Levine Conservation model approach to 30 patients with various cardiovasculer disorders, which the primary case is ADHF. The active cycle of breathing technique is applied to postoperative cardiac surgery patients for pulmonary function recovery after a cardiac surgery. The phase I of cardiac rehabilitation is applied to acute coronary syndrome patients for activity tolerance recovery. The analysis practice result shows  that the conservation model might be applied effectively to the nursing care for cardiovasculer disorders in order to maintain a holism conservation. The active cycle of breathing technique is able to aid pulmonary function recovery post cardiac surgery and the phase I of cardiac rehabilitation is able to aid for activities tolerance, and the standard operating procedures is able to be easily understood and implemented by the patients and nurses.