腹部立位片空肠扩张可见() ["环形皱襞较多","半月状皱襞","上腹或上中腹偏右","中下腹或下腹偏右","环形皱襞较少"]
下列麻痹性肠梗阻的X线表现中,哪项不正确() ["若不合并有腹膜炎,则扩张的肠曲互相靠近,肠间隙正常","立位可见液平面,但液面多于机械性小肠梗阻","多次复查肠管形态改变不明显","若合并腹腔内感染,则肠间隙可增宽,腹脂线模糊","胃、小肠和大肠等均积气、扩张"]
患者女,49岁,因左下肺支气管扩张累及左上肺舌叶,而于11d前行左下肺+左上肺舌叶切除术,术后时有发热,T37.5~38.3℃,血WBC最高16.0×10/L,N0.85;术后第5天拔除胸腔引流管。2h前患者突然咳出大量水样黄痰,伴有胸痛、气促。胸部X线片:左侧液气胸。为明确诊断,最没有价值的实验室检查是() ["A.左侧胸腔B型超声检查","胸部CT","支气管镜检查","支气管碘油造影","胸腔积液的实验室检查"]
患者男,19岁,因“胸闷、气短1个月余,加重1周”入院。查体:气管右偏。左侧胸廓饱满,触觉语颤减低,呼吸动度减弱,叩诊呈浊音,呼吸音消失,右侧正常。胸腔B型超声:左侧大量胸腔积液。胸腔穿刺抽取胸液化验:细胞分类以淋巴细胞为主,总蛋白97g/L,葡萄糖5.34mmol/L,三酰甘油19.66mmol/L,胆固醇2.65mmol/L。确诊后下一步治疗方案是() ["A.药物治疗","反复胸腔穿刺","置胸管充分引流后观察数日","立即手术","胸腔注射化学治疗药物"]
右前斜位吞钡检查,食管前缘见不到的压迹是() ["主动脉弓压迹","左主支气管压迹","肺动脉段压迹","左心房压迹","降主动脉压迹"]
何谓心脏性猝死?