<prompt> Kussmauls sign is seen in all of the following, except:Restrictive cardiomyopathyRight ventricular infarctionConstrictive pericarditisCardiac tamponade  <response>: Kussmauls sign is defined by either a rise or a lack of fall of the JVP with inspiration and is classically associated with constrictive pericarditis. It is also seen in patients with restrictive cardiomyopathy, massive pulmonary embolism, right ventricular infarction, and advanced left ventricular systolic hea failure. Ref: Harrisons Internal Medicine, 18th Edition, Pages 1823, 1972-74 