— 藥理與非經腸給藥 · EASY · MCQ —
護理師準備在同一個注射器中混合常規胰島素（Regular）和 NPH 胰島素。護理師應先採取哪項行動？
The nurse is preparing to administer regular insulin and NPH insulin in the same syringe. Which action should the nurse take first?
- AInject air into the Regular insulin vial向常規胰島素瓶內注入空氣
- BInject air into the NPH insulin vial✓ 正解向 NPH 胰島素瓶內注入空氣
- CWithdraw the NPH insulin抽吸 NPH 胰島素
- DWithdraw the Regular insulin抽吸常規胰島素
— Explanation · 中文詳解 —
混合不同種類胰島素（如常規胰島素 Regular 和 NPH 胰島素）在同一個注射器中，需要遵循嚴格的步驟，以確保藥物的穩定性和藥效。常規胰島素是清澈的短效胰島素，而 NPH 胰島素是混濁的中效胰島素。混合的關鍵原則是「先抽清澈（Regular），再抽混濁（NPH）」，且在抽吸前先將空氣注入混濁瓶，再注入清澈瓶。這樣可以防止混濁的 NPH 胰島素污染清澈的 Regular 胰島素瓶，進而影響 Regular 胰島素的快速作用特性。
When mixing insulins, air must be injected into the NPH (cloudy) vial first to prevent contaminating the Regular insulin with NPH particles. This step ensures the integrity of the clear, short-acting insulin before drawing it up, adhering to the principle of 'clear before cloudy' to maintain drug efficacy and safety.