護理師評估低血鉀病人時，哪項發現是最需要優先通報的？

低血鉀（Hypokalemia）會干擾心肌細胞的電生理活動，導致心肌去極化與再極化過程異常。心律不整（Arrhythmias）是低血鉀最致命的併發症，可能引發心室顫動甚至心跳停止。在臨床照護中，根據 ABC 原則（Airway, Breathing, Circulation），心臟循環功能受損具有最高的優先級，必須立即監測心電圖並回報醫師。

Hypokalemia significantly affects cardiac electrophysiology, making irregular heart rhythms the most critical finding to report due to the risk of fatal dysrhythmias like ventricular fibrillation. According to ABC principles, circulatory stability takes precedence over gastrointestinal or musculoskeletal symptoms. Immediate reporting allows for prompt intervention to prevent cardiac arrest.