【单选题】【消耗次数:1】
倍氯米松治疗过敏性支气管哮喘的主要作用机制是
兴奋β\sub2\nosupersub 受体
直接扩展支气管平滑肌
稳定肥大细胞膜,抑制炎性介质释放
使细胞内cGMP增加
兴奋M受体
参考答案:
复制
纠错
相关题目
【单选题】 糖皮质激素治疗过敏性支气管哮喘的主要作用机制是
①  抑制抗原-抗体反应引起的组织损害和炎症过程
②  干扰补体参与免疫反应
③  抑制人体内抗体的生成
④  使细胞内cAMP含量明显升高
⑤  直接扩张支气管平滑肌
【单选题】 对支气管平滑肌上的β2受体具有选择性兴奋作用的药物是( )
①  特布他林
②  Adrenaline
③  Isoprenaline
④  多巴胺
⑤  氨茶碱
【判断题】 茶硷类能抑制磷酸二酯酶,提高平滑肌细胞内cAMP而松弛支气管平滑肌。
①  正确
②  错误
【单选题】 可刺激肥大细胞和嗜碱性粒细胞脱颗粒,释放组胺等过敏性介质的成分是
①  C1q、C1s
②  C3b、C4b
③  C3a、C2b
④  C2a、C5a
⑤  C3a、C5a
【单选题】 支气管哮喘的本质是()
①  一种自身免疫疾病
②  气道慢性炎症
③  支气管平滑肌可逆性痉挛
④  支气管平滑肌内β<sub> 2</sub> 受体功能低下
⑤  肥大细胞膜上M胆碱能受体功能亢进
【单选题】 能使支气管平滑肌强烈而持久收缩的生物活性介质是( )
①  组胺
②  白三烯
③  前列腺素D2
④  血小板活化因子
⑤  花生四烯酸
【单选题】 支气管哮喘的治疗药物不能选用()。
①  普萘洛尔
②  氨茶碱
③  沙美特罗
④  异丙托溴铵
⑤  布地奈德
【单选题】 支气管哮喘的主要特征
①  吸气性呼吸困难
②  非发作性的呼气性呼吸困难
③  混合性呼吸困难
④  发作性的伴有哮鸣音的呼气性呼吸困难
⑤  突发性胸痛伴呼吸困难
【单选题】 诱发老年性支气管哮喘的因素有( )。
①  过敏原或理化因素刺激
②  精神因素
③  以上都是
④  上呼吸道感染
【单选题】 支气管哮喘的临床特征主要是
①  吸气性呼吸困难
②  反复发作,阵发性、呼气性呼吸困难
③  反复发作,混合性呼吸困难
④  夜间阵发性呼吸困难
随机题目
【单选题】 Our new house is very ____ for me as I can get to the office in five minutes.
①  adaptable
②  convenient
③  available
④  comfortable
【单选题】 Have you any oranges and apples?____________
①  The oranges are very cheap.
②  You like apples, dont you?
③  Of course, we have some fruits.
④  Yes, madam, on the second shelf over there.
【单选题】 the old couple decided to ____ a boy and a girl though they had three of their own.
①  adapt
②  bring
③  receive
④  adopt
【单选题】 I will count three hundred and not one of you ______ move a bit.
①  is to
②  are to
③  is
④  are
【单选题】 After a lot of difficulties, he _______ to open the door.
①  managed
②  succeeded
③  accomplished
④  tried
【单选题】 None of us expected the chairman to _____ at the party. We thought he was still in hospital.
①  turn in
②  turn over
③  turn up
④  turn down
【单选题】 Thanks, you saved my daughter’s life!____________
①  Oh, I’m afraid I didn’t do well enough.
②  No problem.
③  I’m glad I could help.
④  It’s not necessary for you to say so.
【单选题】 All things ____, the planned trip will have to be called off.
①  considered
②  be considered
③  considering
④  having considered
【单选题】 It is better for you to be _____ about its consequences before you take any action.
①  positive
②  absolute
③  critical
④  favorite
【单选题】 The new apartment built a few months ago is large enough to _____ over two hundred people.
①  contain
②  provide
③  reside
④  accommodate