當個案在散步時報告胸痛，應首先採取什麼行動？
Which action should be taken first when a client reports chest pain during a walk?
- AStop activity and rest immediately✓ 正解停止活動並立即休息
- BCheck vital signs檢查生命徵象
- CAdminister nitroglycerin給予硝酸甘油
- DContinue walking slowly繼續緩慢行走
胸痛（Chest pain）發生時，首要目標是降低心肌耗氧量（Myocardial oxygen demand）。當個案在活動中感到胸痛，代表心臟供氧無法滿足需求，此時立即停止活動（Stop activity）能最快減緩心肌代謝負擔。在臨床護理思路中，NCLEX 強調「安全」與「優先順序」，停止誘發因子是處理心絞痛（Angina）的第一步，之後才是藥物給予與生命徵象評估。
When chest pain occurs, the primary goal is to reduce myocardial oxygen demand. If a client develops chest pain during activity, it signals that cardiac oxygen supply cannot meet demand. Immediately stopping the activity provides the fastest way to relieve myocardial metabolic burden. Within NCLEX clinical reasoning, which emphasizes "safety" and "priority," removing the precipitating factor is the first step in managing angina; only afterward should medication administration and vital sign assessment follow.