— 藥理與非經腸給藥 · HARD · MCQ —
一位子癇前症病人正在靜脈輸注硫酸鎂。哪項評估結果需要護理師停止輸注？
A nurse is caring for a client receiving intravenous magnesium sulfate for preeclampsia. Which assessment finding requires the nurse to stop the infusion?
- AUrine output of 40 mL per hour每小時尿液輸出量 40 mL
- BAbsent patellar deep tendon reflexes✓ 正解膝腱反射消失
- CMild lethargy輕度嗜睡
- DRespiratory rate of 16 breaths per minute呼吸頻率為每分鐘 16 次
— Explanation · 中文詳解 —
硫酸鎂中毒的三大指標：反射消失（DTRs）、呼吸抑制（<12次/分）、尿量減少（<30mL/hr）。反射消失是毒性作用的早期指標，若出現此徵兆需立即停止輸注並準備鈣離子拮抗劑（Calcium Gluconate）。呼吸 16 次與尿量正常均為安全範圍。
The three main indicators of magnesium sulfate toxicity are absent deep tendon reflexes (DTRs), respiratory depression (< 12 breaths/min), and decreased urine output (< 30 mL/hr). Absent reflexes are an early sign of toxicity; if present, the infusion must be stopped immediately and calcium gluconate prepared as an antidote. A respiratory rate of 16 and normal urine output are both within safe ranges.
✦ 台美臨床差異
硫酸鎂在兩地皆為產科高警訊藥物，護理師給藥前皆需雙重簽核。