A.估計(jì)分娩時(shí)會(huì)陰撕裂不可避免 B.會(huì)陰過緊 C.經(jīng)產(chǎn)婦 D.胎兒過大 E.母兒有病理情況急需結(jié)束分娩
A.初產(chǎn)婦較經(jīng)產(chǎn)婦長(zhǎng) B.臨產(chǎn)前的宮頸管長(zhǎng)2~3cm C.初產(chǎn)婦多是宮頸管先消失,宮口后擴(kuò)張 D.經(jīng)產(chǎn)婦多是宮頸管消失與宮口擴(kuò)張同時(shí)進(jìn)行 E.以上均不對(duì)