— 藥理與非經腸給藥 · EASY · MCQ —
病人因急性失代償性心臟衰竭獲處方靜脈注射 Furosemide 40 mg。護理師給藥前應優先評估哪項實驗室數值？
A client is prescribed intravenous furosemide 40 mg for acute decompensated heart failure. Which laboratory value should the nurse prioritize before administration?
- ABlood glucose level血糖濃度
- BSerum potassium level✓ 正解血清鉀濃度
- CWhite blood cell count白血球計數
- DSerum sodium level血清鈉濃度
— Explanation · 中文詳解 —
Furosemide 為環利尿劑，促進腎臟排出水分同時會帶走鉀離子。低血鉀是臨床最常見且嚴重的副作用，可能誘發致命性的心律不整，特別是對於使用毛地黃的病人。給藥前評估鉀離子濃度是確保安全的關鍵，若鉀離子偏低應先聯繫醫師評估是否給予補鉀措施。
Serum potassium levels must be prioritized before administering furosemide because this loop diuretic promotes significant potassium excretion, increasing the risk of life-threatening dysrhythmias. While other electrolytes may be affected, potassium is critical for cardiac stability.
✦ 台美臨床差異
美台臨床皆視低血鉀為給予強力利尿劑之禁忌，但台灣醫院系統常自動在電解質異常時啟動護理師警示。