45岁,拔除左下智齿后伤口愈合良好,无明显炎症。半个月后感拔牙创舌侧疼痛不适,X线片检查无异常,常见的原因() ["A.伤口内有残根","B.伤口内有肉芽","C.干槽症","D.骨尖","E.神经损伤"]
与痫症发生密切相关的病因是:() ["情志抑郁","惊恐","悲伤","大喜","思虑过度"]
原发性免疫缺陷病最为显著的临床特征是() ["反复、慢性感染","生长发育延迟","自身免疫倾向","家族集聚发病","肿瘤发生几率增高"]
主要用四唑氮蓝染料(NBT)试验诊断的疾病是() ["以抗体缺陷为主的免疫缺陷病","严重联合免疫缺陷病","吞噬细胞功能缺陷","补体缺陷","固有免疫缺陷"]
关于主动脉瓣狭窄,说法不对的是() ["正常的左房收缩对主动脉瓣狭窄病人十分必要","主动脉瓣狭窄的三大症状是心绞痛、晕厥和呼吸困难","主动脉狭窄时左室向心性肥厚是主要代偿机制","冠状动脉正常的主动脉瓣狭窄病人不会有心绞痛","主动脉瓣狭窄病人术中心肌保护较一般心脏病手术更重要"]
体外循环前,患者需注入肝素()mg/kg体重,ACT>()后,方可开始体外循环。