護理師照護一位血鉀 6.0 mEq/L 的病人，病人同時出現肌肉無力及心電圖變化（T 波變尖）。護理師應立即採取哪項措施？
A nurse is caring for a client with a potassium level of 6.0 mEq/L. The client is also experiencing muscle weakness and ECG changes (peaked T waves). Which action should the nurse take IMMEDIATELY?
- AAdminister oral potassium supplements給予口服鉀離子補充劑
- BHold all meals until potassium level normalizes暫停所有餐點直至鉀離子數值正常
- CPrepare to administer calcium gluconate IV✓ 正解準備給予靜脈注射葡萄糖酸鈣
- DEncourage fluid intake鼓勵增加水分攝取
血鉀 6.0 mEq/L 屬於高血鉀（Hyperkalemia），且合併肌肉無力與心電圖異常（尖峰 T 波），是心臟驟停的危險訊號。應立即給予 IV 鈣離子（如葡萄糖酸鈣）穩定心肌細胞膜，降低心律不整風險。之後再考慮降鉀措施（如升糖素、利尿劑）。
A potassium level of 6.0 mEq/L with peaked T waves and muscle weakness indicates life-threatening hyperkalemia requiring immediate cardiac stabilization. Administering IV calcium gluconate is the priority action because it stabilizes the myocardial cell membrane and reduces the risk of fatal arrhythmias. Potassium supplements would worsen the condition, and other interventions follow membrane stabilization.
在美國，高血鉀的緊急處理流程非常標準化，通常由加護病房團隊快速執行；台灣醫院面對此情況，也會依循相似的臨床指引，但資源和團隊協調性可能影響執行速度。