A.C5神經(jīng)阻滯 B.C2神經(jīng)阻滯 C.C4神經(jīng)阻滯 D.C3神經(jīng)阻滯 E.C6神經(jīng)阻滯
A.子宮口開(kāi)大到2~4cm B.第一產(chǎn)程開(kāi)始 C.第二產(chǎn)程開(kāi)始 D.子宮收縮開(kāi)始時(shí) E.羊膜破水后
A.出血B.刺破硬脊膜C.張力性氣胸D.感染E.藥物不良反應(yīng)