According to NANDA International (2009), the phenomenon of heart failure is called decreased cardiac output (DCO). The NANDA International classification and taxonomy contains clinically useful terminology for nurses to use and represents a tool for improving nursing communication across specialties and health care environments. Moreover, it can enhance the quality of patient assessments and clinical decisions made by nurses and guides nurses to recognize patient/family/community needs and problems. This process allows for the selection of appropriate outcomes and interventions to meet the needs of the patient.