Head, Spine, and Neurotrauma Practice Test

A 6-month-old infant fell from a changing table. The infant is lethargic with a bulging anterior fontanelle. Vitals are BP 70/40 mmHg, HR 170 bpm, and RR 50. The skin is pale and cool. In this patient, the hypotension is most likely caused by which mechanism?

You are called for a patient who was assaulted 12 hours ago and is now complaining of a severe headache and dizziness. Your assessment reveals bilateral periorbital ecchymosis and ecchymosis over the mastoid process. The patient has no evidence of direct trauma to his eyes or ears. These findings are highly suggestive of what underlying injury?