— 藥理與非經腸給藥 · EASY · MCQ —
一位患有穩定型心絞痛的病人處方了舌下含服硝酸甘油（Nitroglycerin）。護理師應強調關於此藥物儲存的哪項指導？
A client is prescribed sublingual nitroglycerin for stable angina. Which instruction should the nurse emphasize regarding the storage of this medication?
- AKeep the tablets in the original dark glass bottle✓ 正解將錠劑存放在原廠深色玻璃瓶中
- BKeep the tablets in a clear plastic pill organizer將錠劑存放在透明塑膠藥盒中
- CDiscard the medication only after the printed expiration date僅在印刷的有效期限過後才丟棄藥物
- DStore the medication in the refrigerator to maintain potency將藥物存放在冰箱中以維持效力
— Explanation · 中文詳解 —
硝酸甘油對光和熱極度敏感，暴露後會迅速失去藥效。病人必須將其保存在原裝的深色玻璃瓶內，且蓋子要旋緊。藥物一旦開瓶，通常建議在 3 至 6 個月後更換，即使未過期，因為頻繁開啟會導致效力下降。含服時應有刺痛感，若無則可能已失效。
Nitroglycerin is highly sensitive to light, heat, and moisture, so it must be stored in its original dark glass container with the cap tightly closed. The medication should be replaced every three to six months after opening because potency decreases over time, regardless of the printed expiration date.
✦ 台美臨床差異
美國藥典強調開瓶後 6 個月失效；台灣藥局有時會提供分裝瓶，護理師需特別提醒病人避光原則。