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藥理與非經腸給藥 · MEDIUM · MCQ

病人服用鋰鹽(Lithium)。護理師應優先關注哪項檢驗結果?

Which lab finding should the nurse prioritize when caring for a client on Lithium?

  • AWhite blood cell count
    白血球計數
  • BSerum lithium level✓ 正解
    血清鋰濃度
  • CBlood glucose level
    血糖值
  • DSerum sodium level
    血清鈉濃度
Explanation · 中文詳解

鋰鹽(Lithium)具有極窄的治療窗(Therapeutic index),意即治療濃度與中毒濃度非常接近。監測血鋰濃度是評估藥物療效與避免毒性反應(如震顫、共濟失調、意識混亂)的最直接指標。臨床護理核心在於維持穩定的血藥濃度,並定期檢測以調整劑量。雖然血鈉影響鋰的排泄,但血鋰濃度才是判斷病人是否處於安全範圍的首要數據。

Serum lithium levels must be prioritized because lithium has a narrow therapeutic index, meaning the difference between effective and toxic doses is small. Monitoring these levels is essential to prevent toxicity symptoms such as tremors, ataxia, and confusion, even though sodium levels also influence lithium excretion.

✦ 台美臨床差異

在美國臨床,鋰鹽病人通常需定期監測血鋰濃度、腎功能(Creatinine)及甲狀腺功能(TSH),這與台灣臨床常規一致,但美國對於用藥前評估的指引更強調藥物與電解質(尤其是鈉鹽攝取)的交互作用衛教。

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