<prompt> Kussmauls sign is NOT seen inRestrictive cardiomyopathyConstrictive pericarditisCardiac tamponadeRV infarct  <response>: Answer is C Cardiac tamponade most probably Kussmauls sign is absent in cardiac tamponade. Presence of Kussmauls sign in cardiac tamponade suggests an organizing process and presence of epicardial constriction constrictive pericarditis in addition to effusion. Kussmauls sign is not a feature of isolated cardiac tamponade. Kussmauls sign is absent inisolated cardiac tamponade It is frequent with constrictive pericarditis and R.V.MI. Not so frequent in R.C.MP. but definitely present Rare absent in Cardiac Tamponade 