[Current trends in emergency triage in Taiwan: the five-level triage system].

An ideal triage system should accurately and quickly sort patients according to seriousness of diseases, and ensure that patients in emergency departments (EDs) get adequate management in an appropriate medical environment. Recently, EDs throughout the world have been confronting overcrowding, and are developing a five-level triage system to solve the problems that this presents. Taiwan EDs have used the Taiwan triage system (TTS) since 1999 until recently.