護理師準備靜脈輸注氯化鉀。給藥前最重要的評估項目為何？
A nurse is preparing to administer potassium chloride IV. Which assessment is the highest priority before initiating the infusion?
- AUrine output✓ 正解尿量
- BBlood pressure血壓
- CLevel of consciousness意識層次
- DRespiratory rate呼吸頻率
氯化鉀（KCl）具有嚴重的腎毒性與心臟毒性。在靜脈輸注鉀離子前，必須確保腎臟具備排泄功能，以防止高血鉀（Hyperkalemia）導致致命的心律不整。臨床指標即為尿量（Urine output），標準通常為至少 30 mL/hr。若病人尿量不足，必須立即暫停給藥並通知醫師，這是給藥前最高優先的評估項目。
Potassium chloride (KCl) has significant renal and cardiac toxicity. Before intravenous potassium is infused, adequate renal excretory function must be confirmed to prevent hyperkalemia and the fatal arrhythmias it may cause. The clinical indicator is urine output, with the standard usually being at least 30 mL/hr. If the patient's urine output is inadequate, the administration must be paused immediately and the physician notified, and this is the highest priority assessment before administration.