A 39-year-old man is brought to the emergency department following a motor vehicle accident. Blood pressure is 80/50. Physical examination shows distension of neck veins. Lungs are clear to auscultation. Heart tones are distant. Echocardiography confirms the diagnosis. Which of the following is most likely to be seen in this patient?
Ejection click
Holosystolic murmur that increases with inspiration
Loud P2
Paradoxical pulse
Slow-rising pulse
S3
S4
Widened pulse pressure
