A 7-year-old male presents with severe diarrhea and vomiting…

A 7-year-old male presents with severe diarrhea and vomiting of 3 days’ duration. He is anxious, tachypneic, and has a systolic blood pressure of 90 mm Hg. Further assessment reveals that he has weak and rapid radial pulses, but a strong carotid pulse. This child’s clinical condition is most consistent with:

A small compact car was involved in a rollover crash. As you…

A small compact car was involved in a rollover crash. As you are approaching the vehicle, you note that the roof is significantly collapsed. The patient, a 29-year-old male, is complaining of severe pain in his neck and to the top of his head as well as numbness and tingling in his extremities. Witnesses who removed the patient from the vehicle state that he was wearing his seatbelt. What injury mechanism is most likely responsible for this patient’s condition?