護理師正向一群家長衛教幼兒汽車安全座椅的使用。為了確保孩童安全，最重要的指導為何？
A nurse is educating a group of parents about car seat safety for toddlers. Which instruction is the most important for ensuring the child's safety?
- APlace the car seat in the front passenger seat if the vehicle has an airbag若車輛配備副駕座氣囊，請將汽車安全座椅安裝於副駕駛座
- BAdjust the harness straps so they are loose enough for two fingers to fit underneath調整束帶鬆緊度，使其下方可容納兩指寬鬆空間
- CMove the child to a booster seat once they reach age 2兒童滿兩歲後，應轉換使用增高墊座椅
- DKeep the child in a rear-facing car seat as long as possible until they reach the maximum weight limit✓ 正解在兒童達到最大體重限制前，應盡量維持使用後向式汽車安全座椅
汽車安全座椅的正確使用能顯著降低事故死亡率。正確答案 D 符合當前的安全指引，即「盡可能延長後向坐的時間」。後向坐能保護幼兒脆弱的頸部與脊椎，使其在撞擊時受到均勻支撐。選項 C 是常見錯誤，2 歲通常還太小，不適合換成增高墊（Booster seat），應繼續使用具備五點式安全帶的座椅。選項 A 極度危險，前座氣囊充氣力道會重創幼兒，安全座椅必須放在後座。選項 B（預留兩指寬）過於寬鬆，安全帶應緊貼身體（Pinch test），不能有鬆褶。護理師應強調「安全性優於方便性」，這對於 Health Promotion 中的意外預防至關重要。
Proper use of a car seat can significantly reduce mortality from motor vehicle crashes. Option D is correct and aligns with current safety guidelines, which recommend keeping children rear-facing for as long as possible. Rear-facing seats protect the fragile neck and spine of toddlers by providing uniform support during a crash. Option C is a common mistake; age 2 is usually too young for a booster seat, and the child should continue using a seat with a five-point harness. Option A is extremely dangerous, as the force of a deploying front passenger airbag can cause severe injury to toddlers; the car seat must be placed in the back seat. Option B (leaving room for two fingers) is too loose; the harness should fit snugly against the body (pinch test) without any slack. The nurse should emphasize that 'safety takes precedence over convenience,' which is critical for injury prevention in health promotion.
美國 AAP 建議後向至 2 歲或達到座椅上限（常到 4 歲）；台灣法規要求 2 歲以下需後向。美國護理師常需現場檢查家長的安裝情況。