— 藥理與非經腸給藥 · HARD · MCQ —
一位孕婦因產前子癇症正在滴注硫酸鎂，護理師評估發現呼吸速率每分鐘 10 次且膝反射消失，優先處置為何？
A client is receiving an IV infusion of magnesium sulfate for preeclampsia. The nurse assesses the client and finds a respiratory rate of 10 breaths/min and absent patellar reflexes. Which is the priority intervention?
- AAdminister Calcium Gluconate給予葡萄糖酸鈣
- BStop the infusion immediately✓ 正解立即停止輸注
- CIncrease the IV rate增加靜脈輸注速率
- DPrepare for immediate delivery準備立即分娩
— Explanation · 中文詳解 —
硫酸鎂（Magnesium sulfate）常被用於預防子癇症（Eclampsia）。其治療窗狹窄，中毒跡象包括呼吸抑制（<12次/分）、膝反射消失、尿量減少（<30ml/hr）及低血壓。一旦出現中毒徵象，護理師應立即停止輸液，以防止藥物持續進入體內引發呼吸衰竭。隨後應備妥鈣離子拮抗劑（Calcium gluconate）以備醫師處方使用。
The priority intervention is to stop the magnesium sulfate infusion immediately, as the client is exhibiting signs of toxicity such as respiratory depression and absent reflexes. Although calcium gluconate is the antidote, removing the source of the toxin takes precedence to prevent further absorption and potential respiratory failure.