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藥理與非經腸給藥 · MEDIUM · MCQ

抗生素進行「谷濃度(Trough level)」檢測的主要目的是什麼?

What is the primary purpose of a 'trough' level test for an antibiotic?

  • ATo measure the peak concentration reached
    測量達到的峰濃度
  • BTo ensure the drug stays above toxic levels
    確保藥物保持在毒性水平以上
  • CTo check if the drug concentration is safe before the next dose✓ 正解
    在下一次給藥前檢查藥物濃度是否安全
  • DTo see if the patient is allergic
    確認病人是否過敏
Explanation · 中文詳解

治療藥物監測(Therapeutic Drug Monitoring, TDM)對於治療指數狹窄的藥物(如萬古黴素 Vancomycin)至關重要。谷濃度(Trough level)是指藥物在下一次劑量給藥前,體內濃度降至最低的時間點。檢測此值是為了確保藥物濃度維持在治療範圍內,且未蓄積至毒性劑量,避免藥物不良反應(如腎毒性或耳毒性)。

A trough level measures the lowest concentration of a drug in the bloodstream just before the next dose is administered. This test is critical for ensuring the medication has cleared sufficiently to prevent toxicity while maintaining therapeutic efficacy, particularly for drugs with a narrow therapeutic index like vancomycin.

✦ 台美臨床差異

在美國醫院,藥師(Pharmacist)通常會密切參與TDM,護理師需精確記錄給藥時間,確保採血時間點與給藥時間點對應正確。

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