# 請將針對嚴重子癇前症開始處方硫酸鎂維持輸注的步驟依序排列。

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> url: https://mymerci.kr/pages/nclex_q.php?qn_id=514128&lang=zh-tw  
> language: zh-TW  
> subject: Adverse Effects/Contraindications/Interactions  
> category: PPT

## 題目

請將針對嚴重子癇前症開始處方硫酸鎂維持輸注的步驟依序排列。

在輸注期間持續進行呼吸、反射、尿量、鎂和胎兒-母親的系列評估。

確認膝反射、呼吸速率、尿量、腎功能以及核准的維持劑量。

將輸注幫浦設定為 50 mL/hr，以從 20 g 溶於 500 mL 的輸液袋中輸送 2 g/hr。

確認濃度：20 g 溶於 500 mL 等於 40 mg/mL。

如果呼吸或反射變得遲緩，停止輸注並啟動毒性反應措施。

## 解析

評估優先，其次是濃度確認、速率計算和設定、主動監測，以及在需要時的毒性反應措施。

## 深入解析

快速解答
使用評估 - 確認濃度 - 計算並設定 - 監測 - 因毒性而停止。

為何這是正確的
20 g 溶於 500 mL 是 0.04 g/mL 或 40 mg/mL。因此，每小時 2 g 的劑量需要 50 mL/hr。腎功能受損會增加鎂累積的風險，因此反射、呼吸、尿量和血中濃度至關重要。

簡單類比或心像
在準備輸液袋之前檢查病人，在設定輸液幫浦之前處理輸液袋，然後持續觀察病人。

記憶點
病人、濃度、速率、趨勢、搶救。

NCLEX 決策規則
計算只有在輸注前安全評估和設定後監測與其連結時才算完成。

為何其他選項是錯誤的
在評估之前設定輸注可能會將鎂輸注到清除功能受損的病人體內，而延遲對呼吸或反射遲緩的反應則會讓毒性進展。References
1DailyMed: Magnesium Sulfate in Water for InjectionOne-to-two-gram hourly maintenance, reflex and respiratory monitoring, and renal maximum

## 臨床情境

鎂輸注順序
確認腎臟清除率、尿量、反射、呼吸、輸液袋濃度、g/hr 醫囑、mL/hr 設定以及毒性反應用品。

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