5岁女孩,外院诊断为先天性心脏病Roger病。此患儿首先出现的血流动力学变化是() ["左、右心房扩大","右心房扩大","左、右心室扩大","左心室扩大","右心室扩大"]
男孩,6岁,不慎被开水烫伤头颈部及双上肢,则该患者烫伤面积为() ["33%","19%","30%","40%","15%"]
下列属于ANA常见的荧光图形的是() ["均质型","斑点型","核膜型","胞浆型","核仁型"]
患儿,自10岁起下肢青紫,逐渐加重。胸骨左缘第2肋间Ⅱ级收缩期杂音,P2亢进。血气分析提示:右桡动脉血氧饱和度96%,股动脉血氧饱和度80%。诊断是() ["室间隔缺损","房间隔缺损","动脉导管未闭","法洛四联症","肺动脉狭窄"]
目前临床检测抗ENA抗体较常用的方法有() ["双向免疫扩散","对流免疫电泳","免疫印迹技术","dot-ELISA","间接荧光免疫法"]
什么是MPEG-4?什么是MPEG-21?