This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Causes of raised J.V.P. with hypotension are allexcept 
Select and explain. 
A. >Cardiac tamponade, B. >Right ventricular M.I., C. >Hea failure, D. >2nd degree A.V. block
D: >2nd degree A.V. block
Answer: D: >2nd degree A.V. block 
Explanation: 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