患者女性，46岁。诊断为风湿性心脏病、二尖瓣关闭不全、心功能3级，拟行二尖瓣替换术。
题型：单项选择题 案例分析题
问题：
患者女性，46岁。诊断为风湿性心脏病、二尖瓣关闭不全、心功能3级，拟行二尖瓣替换术。
诱导前头低足高位行颈内静脉穿刺时（穿刺不顺），病人心率突然增加至120次/分、血压下降、呼吸困难。最可能是（）
A.穿刺致心包填塞
B.穿刺部位疼痛
C.过度紧张
D.穿刺致气胸
E.心力衰竭
题型：单项选择题 案例分析题
Have you ever stayed up late? If so, you know that not getting enough sleep can make you tried and grumpy. Not sleeping enough sleep can also make it harder to think clearly the next day.
Sleep scientists have long known that getting a good night’s sleep is very important. It helps kids be able to do their best during the day.
A recent study shows that sleep helps improve problem-solving skills and creative(创造性的) thinking. For the study, two groups of students answered a math problem. The group that slept for eight hours solved the problem correctly more often than the group that did not get enough sleep.
While you sleep at night, your brain is busy doing its “homework”. It sorts out(整理) al
l the informa
tion that you get in the day. Getting enough sleep each night can improve your thinking ability. That will surely help you do your best at school. Experts say that, i
n return, can lead to better grades.
小题1:The underlined word grumpy in the first paragraph means_______.
A．excited and happy
B．active and creative
C．impatient and angry
D．bored and weak小题2:Choose the best title for this pass
age.
A．Sleep to Success
B．A Recent Study
C．Do Sleep Well
D．The More Sleep, the Better