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: Medicine
Pulsus paradoxus is present in all Except: 
Select and explain. 
A. Emphysema, B. Pulmonary embolism, C. Hypovolemic shock, D. Hyperophic cardiomyopathy
D: Hyperophic cardiomyopathy
Answer: D: Hyperophic cardiomyopathy 
Explanation: Answer is D (Hyperophic cardiomyopathy) Pulsus paradoxus is not a feature of Hyperophic cardiomyopathy. Pulsus paradoxus may be associated with chronic obstructive pulmonary disease (emphysema), pulmonary embolism and Hypovolemic shock.