X线胸片示:右下肺动脉横径2cm,肺动脉段膨隆,心尖上翘,应考虑A、肺心病B、COPD(慢性阻塞性肺疾病)C、支气管哮喘D、肺炎E、肺结核

作者: rantiku 人气: - 评论: 0
问题 X线胸片示:右下肺动脉横径2cm,肺动脉段膨隆,心尖上翘,应考虑
选项 A、肺心病 B、COPD(慢性阻塞性肺疾病) C、支气管哮喘 D、肺炎 E、肺结核
答案 A
解析 肺动脉高压征的X线表现为右下肺动脉干扩张,其横径≥15mm;其横径与气管横径比值≥1.07;肺动脉段明显突出或其高度≥3mm;中央动脉扩张,外周血管纤细,形成"残根征";右心室增大征,以上皆为诊断慢性肺心病的主要依据。
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