The nurse is assisting with a subclavian vein central line insertion when the client’s oxygen saturation rapidly drops. He complains of shortness of breath and becomes tachypneic. The nurse suspects a pneumothorax has developed. Further assessment findings supporting the presence of a pneumothorax include（）

A. diminished or absent breath sounds on the affected side.

B. paradoxical chest wall movement with respirations.

C. tracheal deviation to the unaffected side.

D. muffled or distant heart sounds.

关于肝下移的含义，下列哪一条不正确（）

A.右锁骨中线的肝上界低于第5肋间

B.肝下缘在右锁骨中线肋缘下>1cm，腹上角>5cm

C.肝质地柔软，表面光滑且无压痛

D.肝下移常见于内脏下垂、肺气肿、右胸腔大量积液

E.肝上下径间距离>9~11cm