— 降低風險 · EASY · MCQ —
護理師照護一位有心臟衰竭病史的病人，應密切監測下列哪項實驗室數值？
A nurse is caring for a client with a history of heart failure. Which of the following laboratory values would the nurse monitor closely?
- AWhite blood cell count白血球計數
- BPotassium✓ 正解鉀
- CHemoglobin血紅素
- DProthrombin time凝血酶原時間
— Explanation · 中文詳解 —
心臟衰竭病人常使用利尿劑（如 Furosemide）治療以減輕體液負荷，而利尿劑會導致電解質流失，特別是鉀離子。低血鉀會增加毛地黃毒性反應及心律不整風險，對心衰竭病人具高度威脅。其他數值雖也重要，但電解質監測在心衰竭常規照護中具最高優先性。
Heart-failure patients often receive diuretics (such as furosemide) to reduce fluid overload, and diuretics cause electrolyte losses, especially potassium. Hypokalemia increases the risk of digoxin toxicity and dysrhythmias, posing a major threat to heart-failure patients. Although other values are also important, electrolyte monitoring has the highest priority in routine care of heart failure.
✦ 台美臨床差異
美台臨床對心衰竭病人的電解質監測準則一致，美國護理師在電子病例中常有自動提醒功能。