給予靜脈注射氯化鉀，哪項護理干預至關重要？
Which nursing intervention is essential when administering IV potassium chloride?
- AAdminister as a rapid bolus快速靜脈推注
- BDo not monitor the IV site不需監測靜脈注射部位
- CDilute the medication properly✓ 正解適當稀釋藥物
- DGive without checking renal function在不檢查腎功能的情況下給藥
靜脈注射氯化鉀（IV Potassium Chloride, KCl）極具危險性。KCl 具有強烈的血管刺激性，若濃度過高會造成靜脈炎或壞死，因此必須嚴格稀釋（通常為 10 mEq/100mL）。絕對不可進行靜脈推注（Bolus），因為高濃度的鉀離子進入心臟會直接導致心律不整與心臟停止。給藥前亦需確認腎功能正常，以防高血鉀風險。
Intravenous administration of potassium chloride (IV KCl) is extremely high-risk. KCl is strongly irritating to blood vessels, and overly concentrated solutions can cause phlebitis or necrosis; the drug must therefore be strictly diluted (typically 10 mEq per 100 mL). IV bolus administration is absolutely prohibited because a high concentration of potassium reaching the heart can directly cause arrhythmias and cardiac arrest. Renal function must also be verified before administration to prevent hyperkalemia.