Final answer:
The Glasgow Coma Scale is used to assess the level of consciousness in patients with head injuries.
Step-by-step explanation:
The Glasgow Coma Scale (GCS) is a standardized tool used to assess the level of consciousness in patients with head injuries. It consists of three components: eye-opening response, verbal response, and motor response. Based on the information provided, the patient in question opens his eyes when spoken to, but is confused about the time and date. He is able to move all of his extremities on command. To determine the patient's Glasgow Coma Scale score, we would need the specific responses for each component.