<prompt> Causes of raised J.V.P. with hypotension are allexceptCardiac tamponadeRight ventricular M.I.Hea failure2nd degree A.V. block  <response>: 2nd degree A.V. block Differential diagnosis of increased venous pressure with hypotension Cardiac tamponade Constrictive pericarditis Right ventricular wall M.I. Restrictive cardiornyopathy Right hea failure 