女性,22岁,50kg。因高空坠落致右肱骨干、双下肢股骨干骨折,多处软组织挫伤急诊入院。查BP70/30mmHg,HR130次/分,Hb9.8g/L,HCT29%。手术过程中,患者BP110/70mmHg,HR110次/分,Vt450ml,呼吸频率25次/分,纯氧通气,氧饱和度90%,PaO254mmHg,PaCO230mmHg,该低氧血症可能与下列哪项因素无关()。 ["A.肺挫伤","肌松剂应用","休克","输血","DIC"]
继发性雷诺综合征的病因() ["A.结缔组织病","B.原发性肺动脉高压","C.卒中","D.β-受体阻滞剂","E.硝苯地平"]
非复杂性尿路感染常见于()。 ["老年男性","青年男性","妇女","中年男性","儿童"]
治疗肾结石时,体外碎石、输尿管镜碎石和经皮肾镜取石等方法的选择,最重要的决定因素是() ["结石成分","结石位置","结石大小","泌尿系统解剖因素","身体状况"]
急性肢体缺血的临床表现() ["A.急性疼痛","B.瘫痪","C.感觉异常","D.皮肤苍白","E.肢体远端无脉"]
反映医患关系本质的是()。概括医患关系内容的是()。