动脉导管未闭超声诊断的主要根据是?(?)A．肺动脉增宽B．主动脉增宽C．从降主动脉向肺动脉有收缩期分流血流D．从降主动脉向肺动脉有双期分流血流...

作者: rantiku 人气: - 评论: 0

问题动脉导管未闭超声诊断的主要根据是?(?)

选项 A．肺动脉增宽 B．主动脉增宽 C．从降主动脉向肺动脉有收缩期分流血流 D．从降主动脉向肺动脉有双期分流血流；舒张期明显。 E．肺动脉内检出收缩期血流明显大于舒张期血流

答案 D

解析

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