— 健康促進與維護 · EASY · MCQ —
懷孕第三孕期孕婦預期會出現何種生理變化？
Which of the following is an expected physical change in a pregnant woman in her third trimester?
- ADecrease in blood volume血液容量減少
- BIncrease in tidal volume✓ 正解潮氣容積增加
- CStabilization of center of gravity重心穩定
- DDecrease in urinary frequency排尿頻率減少
— Explanation · 中文詳解 —
懷孕期間肺功能會因應胎兒氧氣需求而改變，潮氣容積（Tidal volume）會增加，以提升換氣量。A 錯誤：血容量是增加；C 錯誤：重心隨胎兒變大而前移，平衡變差；D 錯誤：頻尿在第三孕期因胎頭壓迫膀胱而加重。
During the third trimester, tidal volume increases to meet the heightened oxygen demands of both the mother and the fetus. Other options are incorrect because blood volume increases, the center of gravity shifts forward causing instability, and urinary frequency typically worsens due to uterine pressure on the bladder.
✦ 台美臨床差異
台美對於孕期的生理衛教一致，皆強調頻尿與重心改變的安全性評估。