護理師準備經由點滴給予鉀離子 20 mEq。下列哪項評估發現需要暫停給藥並聯繫醫師？
A nurse is preparing to administer potassium chloride 20 mEq via IV piggyback. Which assessment finding requires the nurse to hold the medication and contact the provider?
- ABlood pressure of 130/80 mmHg血壓 130/80 mmHg
- BClient reports mild burning at the IV site病人報告點滴部位有輕微灼熱感
- CUrine output of 20 mL over the last 2 hours✓ 正解過去兩小時尿量為 20 mL
- DSerum potassium level of 3.8 mEq/L血清鉀濃度為 3.8 mEq/L
鉀離子（Potassium）主要經由腎臟排泄。給予靜脈鉀離子前，必須確認腎功能正常。尿量（Urine output）是評估腎功能最直接的指標，一般成人標準為每小時至少 30 mL。若尿量低於此標準，代表腎臟排泄功能可能衰竭，此時給予鉀離子極易導致高血鉀症（Hyperkalemia），引發致命性心律不整。因此，護理師必須在給藥前確認尿量。
Potassium is primarily excreted by the kidneys. Before administering intravenous potassium, normal renal function must be confirmed. Urine output is the most direct indicator of renal function, with a general adult standard of at least 30 mL per hour. If urine output falls below this threshold, renal excretory function may be failing, and giving potassium would readily cause hyperkalemia, leading to lethal cardiac dysrhythmias. Therefore, the nurse must verify adequate urine output before administering the medication.