The purpose of this article was to explore a nursing experience in intensive care unit for a patient with acute myocardial infarction undergoing coronary artery bypass surgery. From January 19 to January 29, 2015, data were collected through observation, interview, physical examination, and chart review according to Gordon's 11 functional health patterns. The health problems identified included decreased cardiac output, acute pain, and anxiety. Through individual medical measures, the author helped the patient to maintain hemodynamic stability. By providing active care, method of pain control, and surgery-related information, the author relieved the patient's acute pain and anxiety. This nursing experience can serve as a reference for the care of such patients.