— 生理適應 · HARD · MCQ —
一位糖尿病病人即將進行使用顯影劑的診斷檢查，護理師應採取哪項關鍵措施以預防併發症？
A client with diabetes mellitus is scheduled for a diagnostic test with contrast dye. Which nursing intervention is crucial to prevent complications?
- AAdminister prophylactic antibiotics給予預防性抗生素
- BPerform a blood glucose check every hour每小時進行血糖檢測
- CRestrict oral fluid intake限制口服液體攝取
- DWithhold metformin for 48 hours✓ 正解停用 Metformin 48小時
— Explanation · 中文詳解 —
使用含碘顯影劑的檢查若與 metformin 併用，會增加乳酸中毒（lactic acidosis）的風險，特別是若檢查導致腎功能暫時性減退時。臨床建議在檢查當天及術後 48 小時內暫停服用 metformin，並在確認腎功能無異常後恢復使用。
Metformin should be withheld for 48 hours around the time of contrast dye administration because the combination can precipitate life-threatening lactic acidosis, particularly if renal function is temporarily compromised. This precaution ensures patient safety while allowing for adequate hydration to promote dye excretion.
✦ 台美臨床差異
美台對 Metformin 與顯影劑停藥的指引高度一致，均需密切監測腎功能指數。