護理師在急診室進行檢傷分類，哪一位病人應優先處理？

在急診室的檢傷分類（triage）過程中，護理師的首要任務是根據病人的病情危急程度，快速評估並排序病人接受醫療處置的順序。這套系統的目標是確保生命垂危的病人能夠得到最及時、最優先的救治，從而最大程度地降低死亡率和嚴重併發症的發生。評估的標準是「潛在的生命威脅」（potential threat to life）以及「器官損傷的可能性」（potential for organ damage）。 此題的病人情況分析如下： A. 10 歲疑似手臂骨折：這屬於相對穩定、非危及生命的狀況，可以等待。 B. 45 歲主訴胸悶合併盜汗：這些症狀高度提示急性心肌梗塞（Acute Myocardial Infarction, AMI）或其他嚴重心臟問題，屬於危及生命的急症，需要立即進行心電圖、抽血及可能的緊急介入治療。 C. 30 歲額頭撕裂傷：雖然需要處理，但通常不會立即危及生命，可排在較後順序。 D. 55 歲慢性背痛：慢性疼痛通常不屬於急診需要立即處理的範疇，除非有急性惡化或伴隨其他危險徵兆。 因此，在這些病人中，出現胸悶與盜汗的病人具有最高的生命危險，應被列為最高優先級（highest priority），優先接受評估與治療。

In the emergency department triage process, the nurse's primary task is to rapidly assess and order patients for medical treatment according to the severity of their condition. The aim of this system is to ensure that critically ill patients receive the most timely and prioritized care, thereby minimizing mortality and serious complications. The criteria for assessment are the potential threat to life and the potential for organ damage. Analysis of the patients in this question: A. A 10-year-old with a suspected fractured arm: this is a relatively stable, non-life-threatening situation and can wait. B. A 45-year-old complaining of chest tightness with diaphoresis: these symptoms strongly suggest acute myocardial infarction (AMI) or another serious cardiac problem and constitute a life-threatening emergency requiring immediate ECG, blood tests, and possibly emergency intervention. C. A 30-year-old with a forehead laceration: although it requires treatment, it is generally not immediately life-threatening and can be placed lower in priority. D. A 55-year-old with chronic back pain: chronic pain is generally not within the scope of conditions requiring immediate emergency-department management unless there is acute worsening or other danger signs. Therefore, among these patients, the one presenting with chest tightness and diaphoresis carries the greatest threat to life and should be assigned the highest priority for assessment and treatment.