<prompt> All the following are seen in cardiac tamponade exceptPulsus paradoxusDiastolic collapse in right ventricular on EchocardiogramElectrical alternansKussmauls sign  <response>: Ref Harrison 19 th ed pg 1573 Pulsus paradoxus clinically, electrical alternans on ECG and RVDC on Echocardiography are characteristic features of cardiac tamponade. 