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
During ventricular pressure pulses square root wave is seen in 
Select and explain. 
A. ASD, B. MVPS, C. Dilated cardiomyopathy, D. Constrictive pericarditis
D: Constrictive pericarditis
Answer: D: Constrictive pericarditis 
Explanation: Ref Harrison 19 th ed pg 1576 constrictive pericarditis, the ventricular pressure pulses in both ventricles exhibit characteristic "square root" signs during diastole. These hemodynamic changes, although characteristic, are not pathognomonic of constrictive pericarditis and may also be observed in restrictive cardiomyopathies.