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藥理與非經腸給藥 · HARD · MCQ

護理師給予靜脈輸注氯化鉀。在沒有連續心電圖監測下,通常認為的最大安全輸注速度為何?

A nurse is administering a dose of potassium chloride intravenously. Which rate is generally considered the maximum safe infusion rate without continuous cardiac monitoring?

  • A10 mEq/hr✓ 正解
    10 mEq/hr
  • B20 mEq/hr
    20 mEq/hr
  • C50 mEq/hr
    50 mEq/hr
  • D40 mEq/hr
    40 mEq/hr
Explanation · 中文詳解

氯化鉀(Potassium Chloride)屬於高警訊藥物(High-alert medication)。靜脈輸注鉀離子若速度過快,會導致血清鉀離子濃度急速上升,引發致命性的心律不整(如心室顫動),因此臨床給藥有嚴格限制。在沒有連續心電圖(ECG)監測的情況下,每小時輸注上限為 10 mEq,以確保安全。

Potassium chloride is a high-alert medication, and rapid infusion can cause fatal arrhythmias; therefore, the maximum safe infusion rate without continuous cardiac monitoring is generally 10 mEq/hr. Higher rates require telemetry monitoring to ensure patient safety during administration.

✦ 台美臨床差異

美國臨床對於 KCl 的給藥規範非常嚴格,通常需經由輸液幫浦(IV Pump)給藥,且若速度超過 10 mEq/hr,必須強制轉入 ICU 或具備嚴密監控的床位。

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