对于瘙痒症以下叙述不恰当的为() ["某些物理、化学刺激及药物也可引起该病的发生","病因繁多,常与某些系统性疾病有关","临床上仅有瘙痒症状而无原发性皮肤损害的皮肤病","临床上很少见到继发皮损","积极寻找原发病因并进行相应的治疗,是预防该病的关键"]
男性,59岁。突然上腹部疼痛2小时不缓解,伴恶心、呕吐,疼痛放射至左臂,在单位医务室注射哌替啶未解除疼痛来诊。既往无胃病史。心电图提示急性下壁、正后壁心肌梗死,为挽救濒临死亡心肌,最主要的治疗措施是() ["A.吸氧","镇静、止痛","静脉点滴极化液","卧床休息","静脉溶栓治疗"]
属于成膜材料的是() ["EVA","HPMC","PEG","甘油","火棉胶"]
一侧颈内动脉闭塞,可无临床症状,是因为() ["同侧颈外动脉未闭塞","对侧颈内动脉未闭塞","正常脑底动脉环可迅速建立侧支循环","双侧椎动脉未闭塞","颅内血管变异"]
立位片上,腹腔游离气体典型影像为() ["球形","半球形,有气一液面","新月形","与胸腔间距>15mm","不规则形"]
急性化脓性胆管炎的概念