A.水封瓶長(zhǎng)玻管在水下3~4Cm,水封瓶低引流口60Cm
B.水封瓶長(zhǎng)玻管在水下3~4Cm,水封瓶低引流口40Cm
C.水封瓶長(zhǎng)玻管在水下4~6Cm,水封瓶低引流口30Cm
D.水封瓶長(zhǎng)玻管在水下4~6Cm,水封瓶低引流口60Cm
E.水封瓶長(zhǎng)玻管在水下2~3Cm,水封瓶低引流口50Cm
A.禁食輸液
B.術(shù)前3天每晚洗胃
C.清潔灌腸
D.口服腸道制菌藥
E.應(yīng)用維生素K