Category four patients are those who do not have a fever of above 39 degrees C or breathing difficulties or have not been critically poisoned. If these patients can not be persuaded to go through non-emergency channels, the ER may delay their treatment. Shih says that category four patients are often not seriously ill, yet they chase after staff to complain, adding to the difficulties of the ER.
石富元說，第四級病患常是病情並不嚴重，卻到處找醫護人員抱怨，增加急診室問題。