The diagnosis of TBI is done by measuring the impact of the injury on a Glasgow Coma Scale. The scale ranges from 3 to 15, higher the number, lesser the impact. When a person is admitted to the hospital due to a brain injury and if the person is awake, the first test done is to check if he/she is able to follow the directions of the nurse/doctor, move his/her eyes and limbs as instructed. Then the speech is tested. These can give important clues in assessing the extent of the damage that has happened.
TBI, Traumatic Brain Injury refers to the severe blow/injury to the head that affects the brain tissues and their functioning. This can due to the use of blunt force like hitting the head with a heavy object or when the head hits a hard object during an accident etc or due to piercing objects that pass through the skull and enter the brain damaging the brain tissues