Following a motor vehicle accident, the patient is brought to the emergency department with a head injury. Upon assessment, the nurse notes otorrhea and mastoid bruising. The nurse reports the findings to the provider and suspects further testing will reveal which injury? 

A 41-year-old male complains of sudden onset of severe chest pain and describes it as a constant tearing sensation that radiates to his lower back. The nurse is most suspicious of which condition?

A patient is brought to the emergency department with right-sided weakness, right-sided facial drooping, slurring of the words, and aphasia. The nurse is most suspicious for which condition?