參考答案
:1.D,2.A,3.B,4.C,5.E
:6.A,7.D,8.B,9.E,10.C
:11.A,12.D
:13.A,14.B,15.E,16.D,17.C
:18.E,19.C,20.A,21.B
:22.B,23.C,24.D,25.A
:26.A,27.D
:28.C,29.B,30.D,31.A
:32.B,33.A,34.C,35.D 解題思路:氣管黏膜表面富含感覺神經(jīng)纖維,當氣管插管時由于氣管黏膜受到刺激,交感神經(jīng)興奮,可產(chǎn)生心率增快,血壓升高,顱內壓升高等不良反應。β受體廣泛存在于心肌和血管上皮,當β受體阻滯后,可使心率減慢、外周血管阻力下降,心排血量下降,血壓降低。失血性休克時,由于有效循環(huán)血量不足,可表現(xiàn)為血壓下降;因為代償循環(huán)血量不足,心率增快。苯腎上腺素為α受體興奮劑,可使外周血管收縮,由于回心血量增加,可反射性使心率減慢。
:36.D,37.C,38.A,39.B
:40.A,41.B,42.C,43.D
:44.A,45.B,46.E,47.C
:48.C,49.D,50.A