— 藥理與非經腸給藥 · HARD · MCQ —
護理師進行氯化鉀周邊靜脈輸注。建議的最大濃度為何？
A nurse is administering potassium chloride IV. What is the maximum recommended concentration for peripheral infusion?
- A5 mEq/100 mL5 mEq/100 mL
- B40 mEq/100 mL40 mEq/100 mL
- C20 mEq/50 mL20 mEq/50 mL
- D10 mEq/100 mL✓ 正解10 mEq/100 mL
— Explanation · 中文詳解 —
氯化鉀（Potassium chloride）具有強烈的血管刺激性，若濃度過高或推注速度過快，極易引起嚴重的周邊靜脈炎、血管痙攣，甚至組織壞死。臨床安全規範要求周邊靜脈輸注的氯化鉀濃度不應超過 10 mEq/100 mL，且必須透過輸液幫浦（IV Pump）嚴格控制滴速，絕對禁止直接靜脈推注（IV Push）。
Potassium chloride is highly irritating to peripheral veins, so the maximum recommended concentration for peripheral infusion is 10 mEq/100 mL to prevent phlebitis and tissue damage. Higher concentrations pose significant risks of venous irritation and should only be administered via central lines with strict monitoring. It must never be given as an IV push.