Which of the following is true regarding the Glasgow Coma Scale?

The Glasgow Coma Scale (GCS) is a critical tool used to assess a patient's level of consciousness and overall neurological function following a head injury or other emergencies affecting brain function. The scale evaluates three key components: eye opening, verbal response, and motor response. Each of these components is scored individually, and the total score helps in determining the severity of the patient's condition.

Option B accurately reflects this comprehensive assessment by stating that the GCS provides a score based on eye, verbal, and motor functions. This multifaceted approach ensures that evaluators can obtain a clearer understanding of the patient's neurological status and make informed decisions for further care.

By contrast, the other options do not capture the full essence of the GCS. The first option suggests a limitation to only assessing motor skills, which neglects the critical relevance of both verbal responses and eye-opening capabilities. The third option inaccurately implies that the scale is exclusively for unresponsive patients, whereas it is useful for anyone with altered consciousness, regardless of their responsiveness level. The fourth option mistakenly asserts that the scale focuses solely on neurological history, disregarding the immediate and observable aspects of a patient's current condition that GCS is designed to evaluate.