一位創傷後壓力症候群（PTSD）的病人告訴護理師：「每當聽到巨大聲響，我就覺得自己又回到了戰場。」病人描述的是何種現象？
A client with post-traumatic stress disorder (PTSD) tells the nurse, 'I feel like I am back in the war zone every time I hear a loud noise.' Which phenomenon is the client describing?
- AHypervigilance過度警覺
- BDissociation解離
- CFlashback✓ 正解閃回
- DAvoidance逃避
閃回（Flashback）是 PTSD 的核心症狀之一。病人會感覺創傷事件彷彿正在重新發生，不僅是回憶，還涉及感官與情緒的重現。解離（Dissociation）通常指脫離現實感；逃避（Avoidance）指刻意遠離刺激；過度警覺（Hypervigilance）則是隨時處於警戒狀態。病人的敘述明確指向閃回。
Flashback is a core symptom of PTSD. The patient feels as if the traumatic event is happening again, involving not only memory but also sensory and emotional recurrence. Dissociation refers to detachment from reality; avoidance refers to deliberately staying away from triggers; hypervigilance refers to a constant state of alertness. The patient's description clearly indicates a flashback.
台灣目前對於 PTSD 的診斷與治療多集中在退伍軍人或重大災難倖存者，護理介入常強調壓力調適技巧。