A.0.25%丁哌卡因8ml B.1%利多卡因8ml C.1.5%利多卡因加1:200000腎上腺素8ml D.0.25%丁哌卡因15ml E.0.125%丁哌卡因15ml
A.氧飽和度的下降 B.興奮或激惹 C.低血壓 D.心率增快 E.意識消失
A.哌替啶 B.連續(xù)硬膜外鎮(zhèn)痛 C.笑氣 D.布托非諾 E.腰交感神經(jīng)阻滯