周围动脉穿刺常见并发症有()。 ["栓塞","血栓","心跳骤停","感染","出血"]
血虚头痛的临床特征是() ["头痛而眩","头痛而空","头痛隐隐而晕","头痛昏蒙眩晕","头痛如裂"]
烤瓷合金的()应与金属烤瓷材料尽量接近。 ["热传导系数","热膨胀系数","熔点","抗压强度","弹性模量"]
下列哪些处理对于主动脉瓣关闭不全来说是有益的() ["适当降低体循环阻力","保持稍快的窦性心律","适当增加前负荷","降低心肌收缩性","麻醉维持尽量少用氟烷"]
下述哪些是中心静脉插管的适应证()。 ["严重创伤、休克及急性循环功能衰竭等危重病人","需长期输液或接受完全胃肠外营养治疗的病人","先天或后天心脏病手术","临时起搏","嗜铬细胞瘤手术"]
简述纵隔的分区。