Final answer:
Severe brain injury is indicated by symptoms like extended loss of consciousness, confusion, and impaired motor or language functions, and immediate neurological assessment is critical in emergencies.
Step-by-step explanation:
Assessment findings that raise concern for severe brain injury include loss of consciousness for an extended period, profound confusion, and difficulty with language or motor function. In the context of an emergency, a rapid assessment of neurological function is critical as it can influence immediate treatment decisions and potentially improve outcomes. Symptoms such as paralysis indicate a serious injury, and certain actions, such as moving a person with a suspected back or neck injury, should be avoided to prevent further harm.