问题 单项选择题 A1/A2型题

术前心电图正常的58岁全身麻醉下接受乳腺活检手术的女性,术中出现宽QRS波的心动过速,监测发现血压为81/47mmHg,心率220次/分,最恰当的治疗是()。

A.静脉注射60mg利多卡因

B.静脉注射20mg/min普鲁卡因胺

C.电转复

D.静脉注射300mg胺碘酮

E.静脉注射6mg腺苷

答案

参考答案:C

解析:由于循环受到威胁,需立即进行电复律。利多卡因与胺碘酮在窦性心律恢复后可使用。

单项选择题
填空题



Americans have four primary avenues for making friends: at work, at school, through a hobby or a (1) such as volunteer work and discussion group, or through a family or (2) .
In American culture, a job is more than the work that one performs between the hours of 9 a.m. and (3) . Work becomes a major socializing influence. Many young mothers who (4) their jobs to care for small children remark on the loneliness of their new lifestyles because they have lost their forum for (5) .
A great number of American employers recognize business social (6) and use it to build a family atmosphere on the job so that employees will feel (7) in their work environment. Some employers arrange company get-togethers in their home or at a (8) . American companies have at least one (9) annually, usually at Christmas time. Many corporations have (10) where employees and administrators alike dress (11) to play games such as baseball and volleyball.
Top American administrators often hold social gatherings (12) . Depending upon the size of the employer’s home and the number of (13) . These social gatherings may be picnics, pool parties, or (14) . If the company is large, an employer may hold what Americans call (15) . For an open house, the employer will invite his employees to come to his home (16) between 1 p.m. on a certain day. Those invited usually stay for (17) , chatting with the other guests and their host. People come and go (18) during the designated hours, and the host keeps refreshments, usually (19) or hors d’oeuvres and beverages, available for all who come. For such social gatherings, it is considered (20) the invitation unless you have an excellent reason.