Final answer:
A basilar skull fracture can be life-threatening due to potential damage to the artery that passes through the carotid canal, resulting in a hematoma and increased pressure on the brain. Ecchymosis behind the ears is an important assessment finding to report to the provider in a client with a basilar skull fracture.
Step-by-step explanation:
A basilar skull fracture can be life-threatening because it has the potential to damage the artery that passes through the carotid canal. This can result in bleeding inside the skull, leading to the formation of a hematoma (collection of blood) between the brain and interior of the skull. As blood accumulates, it puts pressure on the brain, which can be fatal if left untreated.
In the given scenario, the assessment finding that the nurse should report to the provider is ecchymosis behind the ears. Ecchymosis, which is the medical term for bruising, behind the ears may indicate a basilar skull fracture and potential damage to the artery, necessitating immediate medical attention.