當照護一位植入密封放射性物質的病人時，哪項行為顯示護理師理解輻射安全？
Which of the following indicates a nurse's understanding of radiation safety when caring for a client with a sealed radioactive implant?
- APlace a dosimeter badge inside the room將劑量計徽章放置在房間內
- BWear a lead apron while providing total patient care提供全面病人照護時穿著鉛衣
- CAssign a pregnant nurse to provide care to the client指派懷孕護理師提供病人照護
- DLimit time spent in the room to 30 minutes per shift✓ 正解將每班次在房間內的時間限制為30分鐘
輻射安全三大原則：時間、距離、屏蔽。限制照護時間（Time）能直接減少累積輻射量。A 錯誤，膠卷劑量計應配戴在身上；B 錯誤，圍裙無法防穿透性放射線，且效率低；C 錯誤，絕對禁止孕婦照護放射性物質病人。
The three principles of radiation safety are time, distance, and shielding. Limiting the time spent in the room directly decreases the cumulative radiation dose. Option A is incorrect because the dosimeter badge should be worn on the staff member's body; Option B is incorrect because a lead apron cannot block penetrating radiation effectively; Option C is incorrect because pregnant staff must never be assigned to care for clients with radioactive implants.
兩地法律對於輻射安全皆嚴格遵循 ALARA 原則（As Low As Reasonably Achievable）。