In South Korea, approximately 20,000 patients are found to experience cardiac arrest (CA) annually, with a reported survival rate of approximately 4.8% (2015). In patients who are resuscitated from cardiac arrest (CA), neurological prognosis is assessed based on whether the patient can independently perform a daily routine after leaving the hospital. It is an essential issue for patients, as well as their families and local communities. In this sense, research interest in achieving a good neurological prognosis in post-discharge cardiac arrest (CA) patients is increasing. The neurologic status of post-cardiac arrest (CA) patients, who are being considered for discharge from the hospital, is examined mostly using the Cerebral Performance Category (CPC) score, with a score of 1 or 2, on a scale of 1 to 5, indicative of good neurological status.