08-13-2008, 04:55 PM
9. A 17-year-old white girl is brought to the emergency department after she was struck by a car while riding her bicycle. She was wearing a helmet. She is awake, alert, and oriented. Vital signs are temperature 37.0°C (98.6°F), pulse 100/min, respirations 18/min, and blood pressure 107/60 mm Hg. Pulse oximetry shows an oxygen saturation of 96% while breathing room air. Physical examination shows no cervical spine tenderness. Breath sounds are clear. Abdominal, pelvic, and neurologic examinations are normal. Screening x-rays of the lateral cervical spine and pelvis are normal. Chest x-ray is shown. Which of the following is the most likely diagnosis?
A
) Aortic rupture
B
) Flail chest
C
) Hemothorax
D
) Perforated viscus
E
) Pulmonary contusion
A
) Aortic rupture
B
) Flail chest
C
) Hemothorax
D
) Perforated viscus
E
) Pulmonary contusion