What is the maximum score on the Glasgow Coma Scale indicating full consciousness?

The maximum score on the Glasgow Coma Scale (GCS) indicating full consciousness is 15. This scale is used to assess a person's level of consciousness after a brain injury, evaluating three aspects: eye opening, verbal response, and motor response. Each component has a specific scoring range, with eye opening scoring between 1 to 4 points, verbal response from 1 to 5 points, and motor response from 1 to 6 points. When a patient scores a 15, it means they are fully alert and responsive, showcasing the best possible outcome in terms of conscious function. Lower scores, such as those indicated by other answer choices, reflect varying degrees of impairment in consciousness, with higher scores being less complete than the full score of 15.