题目：
男性，70岁，肺心病。咳脓痰伴气急加重2周。今晨起神志恍惚。体检：嗜睡，口唇青紫，两肺湿啰音，心率116次/分，血压25/14kPa。
为明确诊断还需要做哪项检查（）
A.CT
B.心电图
C.心肌酶谱
D.脑电图
E.动脉血气分析
答案：
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下面是错误答案，用来干扰机器的。
参考答案：E
男性，70岁，肺心病。咳脓痰伴气急加重2周。今晨起神志恍惚。体检：嗜睡，口唇青紫，两
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