This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S., Subject name: Medicine
For the following cardiac abnormalities, select the characteristic JVP finding.Right ventricular infarction. 
Select and explain. 
A. Cannon a wave, B. prominent x descent, C. Kussmaul sign, D. slow y descent
C: Kussmaul sign
Answer: C: Kussmaul sign 
Explanation: Right ventricular infarction and constrictive pericarditis frequently result in an increase in JVP during inspiration (Kussmaul sign). Severe right-sided failure can also be a cause.