 The symptoms and signs of childhood diseases vary depending on the age of the patient. The initial assessment process in the emergency department should take into account the broad presentation of illness and injury in children. In 2012, the Korean Society of Emergency Medicine developed the Korean triage and acuity scale, KTAS, which was based on the Canadian triage and acuity scale. This scale was used to evaluate the severity of pediatric patients in eight hospitals in Korea. The study found that the KTAS score correlated with the disposition of patients in the emergency department. The KTAS system can help to prioritize pediatric patients in the emergency room and direct them, to the appropriate level of care. This will lead to improved patient safety and better utilization of resources in the emergency department. This article was authored by Taeho Lim, Junbum Park and Sangmo Je. We are article.tv, links in the description below.