— 健康促進與維護 · MEDIUM · MCQ —
護理師教導一位領有碳酸鋰處方的病人。哪一點是護理師應強調的最重要衛教？
A nurse is teaching a client who has a prescription for lithium carbonate. What is the most important teaching point for the nurse to emphasize?
- AAvoid drinking any fluids while on this medication服用此藥物期間避免攝取任何液體
- BTake the medication only when symptoms of mania occur僅在躁鬱症狀出現時服藥
- CMaintain a consistent sodium intake✓ 正解維持穩定的鈉攝取量
- DIncrease sodium intake significantly during summer夏季大幅增加鈉攝取量
— Explanation · 中文詳解 —
鋰鹽（Lithium）的治療指數極窄（Narrow Therapeutic Index），且其代謝路徑與鈉離子競爭。若病人攝取過低鹽分，腎臟會傾向保留鈉離子，同時也會保留鋰離子，導致鋰中毒；相反地，若攝取過高鹽分，鋰會隨鈉加速排出，導致藥效不足。因此，維持穩定、一致的鈉鹽攝取是使用鋰鹽病人的衛教重點。
Lithium has a narrow therapeutic index and competes with sodium for renal reabsorption. Low sodium intake makes the kidneys retain sodium and lithium, increasing the risk of lithium toxicity; high sodium intake increases lithium excretion and reduces drug efficacy. Therefore, maintaining a consistent sodium intake is the most important teaching point for clients on lithium.