A 40 year old male brought to the emergency room with a stab injury to the chest.On examination pt is found to be hemodynamically stable. The neck veins are engorged and the heart sound are muffled .The following statements are true for this pt except:

Ans. is 'b' i.e. Immediate emergency room thoracotomy should be done There is no need for emergency thoracotomy in a hemodynamically stable ptCardiac tamponade is quite common in stab injuries to the chest.* The classical sign of tamponade are-:Muffled heart sounds*Distended neck veins* -- k/a Beck Triad*Hypotension*The tamponade can be easily diagnosed by echocardiography (identifying abnormal amount of pericardial fluid) and is managed by pericardiocentesis or surgical pericardiotomy