Which Glasgow Coma Scale score range defines a mild brain injury?

Which Glasgow Coma Scale score range defines a mild brain injury?

• A. 3 or less
• B. 8 or less
• C. 9 to 12
• D. 13 or higher

Answer: (C)

The key idea is how the Glasgow Coma Scale groups brain injury by level of consciousness. The score ranges from 3 to 15, with higher numbers indicating better function, based on eye opening, verbal response, and motor response. Mild brain injury is defined by a GCS of 13 to 15. Moderate injury is 9 to 12, and severe injury is 8 or less (often with coma at the lower end). So the range that defines mild is 13 or higher. The 9 to 12 range would indicate moderate injury, while 8 or less signals severe impairment.

The key idea is how the Glasgow Coma Scale groups brain injury by level of consciousness. The score ranges from 3 to 15, with higher numbers indicating better function, based on eye opening, verbal response, and motor response.

Mild brain injury is defined by a GCS of 13 to 15. Moderate injury is 9 to 12, and severe injury is 8 or less (often with coma at the lower end). So the range that defines mild is 13 or higher. The 9 to 12 range would indicate moderate injury, while 8 or less signals severe impairment.