護理師評估一位低血鉀病人，下列哪項發現需優先處理？

低血鉀會影響心肌電生理，導致心律不整，這是生命威脅，必須優先處理。肌肉無力與腸蠕動變慢雖為常見症狀，但不如心臟併發症致命。黏膜乾燥與液體不足有關，雖然需要補液，但心臟穩定性在急診護理中具有最高優先權。

Prevention of skin cancer focuses on minimizing ultraviolet (UV) radiation exposure, which is the primary cause of DNA damage. Using broad-spectrum sunscreen with an SPF of at least 30 blocks approximately 97% of UVB rays, and nurses should also teach the ABCDE self-examination principle and the importance of protective clothing during peak sun hours.

美國護理師常依據醫囑執行靜脈給鉀滴注，台灣亦然，但給藥前需確認尿量以確保腎功能正常，這是兩地共同的安全規範。