男性,65岁,肠梗阻术后1周,大便后突然出现胸痛,呼吸困难。体检:心率130次/分,P2>A2。血气分析示PaO由原来的98mmHg降到70mmHg,Pa...

作者: rantiku 人气: - 评论: 0
问题 男性,65岁,肠梗阻术后1周,大便后突然出现胸痛,呼吸困难。体检:心率130次/分,P2>A2。血气分析示PaO由原来的98mmHg降到70mmHg,PaCO3OmmHg。超声心动图示肺动脉高压,可能的诊断是
选项 A.肺动脉栓塞 B.急性左心衰 C.ARDS D.重症肺炎 E.急性心肌梗死
答案 A
解析 :肺栓塞的栓子来源主要为周围静脉血栓,以下肢深静脉的血栓脱落最为常见。腹部手术可促进局部静脉血栓形成,术后卧床易形成下肢静脉血栓且活动后容易造成

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