绞窄性肠梗阻的X线征象为() ["小跨度卷曲肠袢","假肿瘤征","咖啡豆征","空回肠换位征","长液面征"]
下面有关颅咽管瘤的描述中,哪条是错误的() ["儿童多见,占50%以上","常合并梗阻性脑积水","有内分泌功能障碍,但尿崩少见","CT检查示肿瘤钙化较常见","容易引起视力视野障碍"]
30岁,已婚。停经58天阴道出血7天就诊,尿HCG(+)。诊断为异位妊娠,拟做B超。在异位妊娠的诊断中,哪一项是最具特异性的B超显像图() ["盆腔积血","子宫旁见液性暗区","子宫腔外见胚囊样结构及胎心搏动","宫腔内见胚囊样结构","卵巢内侧见液性暗区"]
下列哪种是α-葡萄糖苷酶抑制剂常见不良反应() ["低血糖症","腹胀和腹泻","下肢浮肿","乳酸性酸中毒","充血性心力衰竭"]
食管癌腔内型的X线特点是() ["累及范围长","巨大息肉样充盈缺损","病灶边界清楚","黏膜皱襞中断破坏","管腔扩张而狭窄梗阻不明显"]
若发生N2窒息,应迅速将中毒人员脱离现场至(),保持(),呼吸停止时立即进行()和胸外心脏()术。