A 52-Year-Old Man Is Brought to the Emergency Department Because

A 52-year-old man is brought to the emergency department because of worsening shortness of breath for 6 hours. For the past 5 days, he has had intermittent stabbing pain in the middle of his chest that worsens with lying down or taking deep breaths. He has a history of stage 4 chronic kidney disease due to chronic glomerulonephritis.  Systolic blood pressure decreases by 12 mm Hg during inspiration.  Physical examination shows distant heart sounds and clear lungs.  Echocardiography in this patient is most likely to reveal which of the following findings?

A) Apical wall motion abnormality
B) Dilation of all cardiac chambers
C) Engorged inferior vena cava
D) Severe tricuspid regurgitation
E) Systolic anterior motion of the mitral valve

Correct Answer:

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