護理師準備為病人給予靜脈輸注氯化鉀。下列哪項安全評估最優先？
A nurse is preparing to administer potassium chloride IV piggyback to a client. Which safety assessment is the highest priority?
- AAssessing the IV site for infiltration評估靜脈注射部位是否有滲漏
- BChecking urine output status✓ 正解檢查尿液排出狀況
- CVerifying the correct dilution concentration確認正確的稀釋濃度
- DReviewing the serum potassium level檢視血清鉀濃度
鉀離子主要經由腎臟排泄。在給予鉀補充劑前，確保病人尿量充足至關重要（通常要求每小時至少30ml），若腎功能受損或尿量不足，給鉀會導致高血鉀危象，引發嚴重心律不整甚至心跳停止。其他選項雖為必要流程，但排除排泄功能障礙是安全給藥的前提。
Potassium is primarily excreted by the kidneys. Before administering potassium supplements, it is essential to ensure adequate urine output (generally at least 30 mL/hour). If renal function is impaired or urine output is insufficient, potassium administration can cause hyperkalemic crisis, leading to severe cardiac arrhythmias or even cardiac arrest. While other options are necessary steps in the process, confirming proper excretory function is a prerequisite for safe medication administration.
兩地均嚴格遵守鉀離子輸注限制，但台灣臨床多有預先定義的鉀離子給藥標準化流程。