问题 单项选择题

对诊断一氧化碳中毒最有意义的辅助检查是

A.高铁血红蛋白浓度测定

B.血液碳氧血红蛋白浓度测定

C.血氧饱和度测定

D.脑电图检查

E.头颅CT检查

答案

参考答案:B

解析:[考点评析] 1.临床表现: ①轻度中毒:头痛、头晕、恶心、呕吐、乏力、意识模糊、嗜睡、血碳氧血红蛋白浓度>10%。 ②中度中毒:轻度昏迷、反射迟钝、面色潮红、皮肤黏膜旱樱桃红色、呼吸深快、血压可下降、心率增快,血液碳氧血红蛋白浓度>30%。 ③重度中毒:常呈深昏迷,各种反射消失,呼吸浅快,血压下降,二便失禁、四肢软瘫,终致呼吸循环衰竭,血液碳氧血红蛋白浓度>50%。 2.诊断:依据中毒病史、临床表现及血液碳氧血红蛋白浓度检查可确诊。 3.治疗: ①纠正缺氧:迅速将病人转移到空气新鲜的地方,卧床休息,保暖,保持呼吸道通畅,给氧。 ②防治脑水肿:20%的甘露醇、速尿、肾上腺皮质激素。 ⑧降温疗法:昏迷时间长,有高热、频繁抽搐者,可采用降温疗法。有物理降温和冬眠疗法。 ④促进脑细胞功能恢复。 ⑤防治并发症及后发症;防治感染,保持水电解质及酸碱平衡,防治神经系统和心脏开发症。

阅读理解
Half a century ago, during the Sino-Japanese War, I was a student at National Southwest Associated University at Kunming in southern China, Lectures were often accompanied by the pitter-patter of rain on the tin roofs of the classrooms; that mud floors were full of holes; and wind blew through paneless windows. As for the library, it was a bare skeleton. A good reference book was used for years and journals usually arrived after a couple of years’ delay.
But despite such hardship, I had the best of my student days in Kunming. Although we were short of research materials, we were uncompromising(坚定的)in our pursue of knowledge and truth. I spent six years at Southwest and obtained my first and second degrees in physics here. I still value those days fervently. In fact it was at Southwest that I first came across Reader’s Digest. To me, the magazine’s insistence on perfection both in style and accuracy—as well as its celebration of life even in the face of hardship—is similar to the values I learned at Southwest.
Later, I went to the United States to study under Enrich Ferimi, the famous physicist who directed the world’s first nuclear chain reaction. One of the first things Ferimi emphasized to me was that physics shouldn’t be so overwhelming(压倒性的)that it is beyond the average man. Physics research, he said, should be connected with our daily lives and physicists should devote most of their efforts to solving practical problems. I couldn’t agree more. Indeed, I think this simple, close-to-life.
Approach applies other attempts too. Reader’s Digest is highly informative, but it is easy to read, and easy to understand, never exaggerating or mystifying. This truthful, down-to earth quality is what I treasure now.
小题1:What is the author?
A.A soldierB.A teacherC.An editorD.A physicist
小题2: Which of the following is NOT true of the National Southwest Associated University?
A.The mud floors of the classrooms were uneven.B.Its classroom windows had no glass.
C.The only thing its library had was a skeleton.
D.It was short of research materials.
小题3: What was the first thing Ferimi emphasized to the author?
A.Physics research should be related to daily lives.
B.Physics should not be considered as the most important course.
C. Theoretical problems need solving first.
D.The results of physics research could be used in the national defense.
小题4: What does the author think of Reader’s Digest?
A.It is far from perfect in style or accuracy.
B.It devotes its efforts to solving practical problems.
C.It gives much information.
D.Its language is simple, but beautifully written.
选择题