what measure is used to test the severity of tbi
To diagnose TBI, health care providers may use one or more tests that assess a person's physical injuries, brain and nerve functioning, and level of consciousness. Some of these tests are described below. 1  Glasgow Coma Scale (GCS)  Measurements for Level of TBI. Health care providers sometimes rank the person's level of consciousness, memory loss, and GCS score. A TBI is considered mild if: The person was not unconscious or was unconscious for less than 30 minutes.