單項(xiàng)選擇題PaO2降至正常值的下列哪項(xiàng)產(chǎn)生昏迷()

A.35%~44%
B.45%~54%
C.55%~64%
D.65%~74%
E.75%~84%


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1.單項(xiàng)選擇題成人腦重量約占體重()

A.1%
B.2%
C.3%
D.4%
E.5%

2.單項(xiàng)選擇題使腦產(chǎn)生判斷失誤和意識障礙的PaO2閾值為正常值的()

A.35%~44%
B.45%~54%
C.55%~64%
D.65%~74%
E.75%~84%

3.單項(xiàng)選擇題正常情況下蛛網(wǎng)膜下隙中腦脊液量有()

A.30ml
B.40~60ml
C.60~85ml
D.80~100ml
E.100~120ml

4.單項(xiàng)選擇題正常人側(cè)臥位腦脊液壓力為()

A.300~325mmH20
B.70~180mmH20
C.250~300mmH20
D.180~200mmH20
E.200~250mmH20