This report describes the nursing experience of a hemodialysis patient with fatal arrhythmia induced by hyperkalemia due to poor diet, and threatened by death anxiety. During the nursing period between 1st and 3rd April, 2013, subjective and objective information were collected by observations, physical assessments, interviews and review of medical records. Health problems including reduced cardiac output, invalid self-health management, death anxiety, etc, were deduced from the assessments based on the Gordon eleven Functional Health Patterns. The patient formed positive coping behavior and death anxiety alleviated through close monitoring of vital signs and hemodynamic changes, diet control education, improvement of health harming eating behaviors, and continuous care with solicitude, encourage and support to enhance patient ’s confidence and belief.