— 健康促進與維護 · MEDIUM · MCQ —
一位 30 歲護理師被問到產前維生素的用途。最主要的原因為何？
A 30-year-old nurse is asked about the purpose of prenatal vitamins. What is the most significant reason?
- AEnsuring the mother does not lose hair確保母親不掉髮
- BPreventing neural tube defects✓ 正解預防神經管缺陷
- CImproving the mother's eyesight改善母親的視力
- DIncreasing the mother's weight增加母親的體重
— Explanation · 中文詳解 —
產前維生素（Prenatal vitamins）的核心價值在於補充懷孕期間所需的高劑量營養素，其中最關鍵成分為葉酸（Folic acid）。葉酸在胎兒神經管發育階段（孕早期）扮演關鍵角色，能有效預防神經管缺損（Neural tube defects, NTDs），如脊柱裂（Spina bifida）或無腦症。其他選項如體重增加、毛髮健康或視力，雖可能與營養有關，但並非服用產前維生素的首要醫療目標。
The most significant reason for taking prenatal vitamins is to prevent neural tube defects, primarily through adequate folic acid intake during early pregnancy. While other nutrients support general health, preventing congenital anomalies like spina bifida is the critical medical objective.