護理師正在衛教一位剛處方舌下硝酸甘油（NTG）片劑的病人。下列哪項病人的陳述顯示其正確理解了衛教內容？
A nurse is teaching a client who has a new prescription for sublingual nitroglycerin (NTG) tablets. Which statement by the client indicates a correct understanding of the teaching?
- AI should swallow the tablet with a full glass of water我應該用一杯滿的水吞下藥片
- BI will take one tablet every 5 minutes for up to 3 doses if chest pain persists✓ 正解如果胸痛持續，我會每5分鐘服用一片，最多三片
- CIf I feel a tingling sensation under my tongue, it means the medicine is expired如果我感覺舌下有刺痛感，代表藥物已過期
- DThe tablets should be stored in a clear plastic container for easy access藥片應存放在透明塑膠容器中以便取用
舌下 NTG 是緩解心絞痛的急救藥物。正確用法是：胸痛發生時立即坐下休息（預防低血壓暈倒），含服一粒於舌下。若 5 分鐘後症狀未緩解，可含第二粒並撥打 911/119，最多含三粒。A 選項錯誤，吞服會經過首渡效應（First-pass effect）而失效，必須舌下吸收；D 選項錯誤，NTG 對光和熱敏感，必須保存在原裝的棕色玻璃瓶中；C 選項錯誤，舌下的微刺痛感（Tingling）通常代表藥效仍存在，並非過期。護理衛教的成功在於病人能否在危急時刻正確操作。這題考查藥物行政給予（舌下路徑）與急救知識。
Sublingual NTG is an emergency medication used to relieve angina. The correct use is: when chest pain occurs, sit down immediately to rest (to prevent fainting from hypotension), then place one tablet under the tongue. If symptoms are not relieved after 5 minutes, take a second tablet and call 911/119, with a maximum of three tablets. Option A is incorrect because swallowing the tablet would subject it to first-pass effect and render it ineffective; it must be absorbed sublingually. Option D is incorrect because NTG is sensitive to light and heat and must be stored in its original amber glass bottle. Option C is incorrect because a slight tingling sensation under the tongue typically indicates the drug is still potent, not that it has expired. Successful client teaching depends on whether the client can correctly apply the medication in a critical moment. This item tests medication administration (sublingual route) and emergency knowledge.
美國 NCLEX 針對 NTG 的衛教重點在於「Call 911」的時機（通常是第一劑無效後就打）。台灣部分衛教仍習慣說「含滿三劑無效再就醫」，但在最新的急救指引中，已趨向與美國同步，強調早期啟動醫療體系的重要性。