單項(xiàng)選擇題椎管內(nèi)麻醉血壓下降的主要原因是()

A.肌肉松弛
B.心交感神經(jīng)節(jié)阻滯
C.交感神經(jīng)阻滯
D.副交感神經(jīng)阻滯
E.中樞交感神經(jīng)介質(zhì)釋放減少


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1.單項(xiàng)選擇題硬膜外阻滯完善的時(shí)間需()

A.3~5min
B.8~10min
C.12~20min
D.25~30min
E.40min以上

2.單項(xiàng)選擇題硬膜外給藥后藥液擴(kuò)散停止需()

A.5min
B.10min
C.15min
D.20min
E.25min

3.單項(xiàng)選擇題腹腔臟器的交感神經(jīng)支配來源于()

A.T4-10交感神經(jīng)節(jié)前纖維
B.T5-12交感神經(jīng)節(jié)前纖維
C.T5~L1交感神經(jīng)節(jié)前纖維
D.T5~L2交感神經(jīng)節(jié)前纖維
E.T6~L4交感神經(jīng)節(jié)前纖維

5.單項(xiàng)選擇題關(guān)于腦脊液哪項(xiàng)不對(duì)()

A.成人總量約120~150ml
B.腦蛛網(wǎng)膜下隙約35~40ml
C.腦室約60--70ml
D.脊蛛網(wǎng)膜下隙約25~30ml
E.終池約10ml