Cardiac tamponade is suggested by jugular venous distention muffled heart sounds and a paradoxical pulse .

颈 静脉怒张、心音低沉、及奇 脉提示心包填塞。

After patients entering the operating room venous puncture of upper limbs was done and then the lactated Ringer injection was dripped . Blood pressure electrocardiogram pulse oxygen saturation and so on were monitered and their basic value was recorded .

患者入手术室后开放上肢静脉， 静脉滴注乳酸钠林格氏液，连接监护仪，监测血压、心电图、 脉搏氧饱和度等，并记录基础值。