— 生理適應 · MEDIUM · MCQ —
護理師照顧一位低血鉀病人，下列哪項評估發現需立即回報醫師？
A nurse is caring for a client with hypokalemia. Which assessment finding should the nurse report to the provider immediately?
- APresence of muscle cramps出現肌肉痙攣
- BGeneralized fatigue全身性疲倦
- CIrregular heart rhythm✓ 正解心律不整
- DAbdominal distention腹部膨脹
— Explanation · 中文詳解 —
鉀離子（Potassium）是維持心肌電生理傳導的重要電解質。低血鉀（Hypokalemia）會導致心肌興奮性異常，進而引發致命性心律不整（Arrhythmia）。雖然肌肉無力、疲勞與腸胃蠕動減慢（如腹脹）均為常見的臨床表現，但心律不整威脅病人的立即生命安全，屬於最高優先級（Priority），必須立即回報並採取緊急處置。
Irregular heart rhythm must be reported immediately because hypokalemia can trigger fatal cardiac arrhythmias. Although muscle cramps, fatigue, and abdominal distention are expected findings, cardiac instability poses the most immediate threat to life and requires urgent intervention.