Which score reflects the least responsiveness in a GCS assessment?

The Glasgow Coma Scale (GCS) is a neurological scale used to assess a person's level of consciousness based on three criteria: eye opening, verbal response, and motor response. Each criterion is scored separately, and the total score ranges from 3 to 15. A score of 3 indicates no responsiveness in any of the evaluated areas—no eye opening, no verbal communication, and no motor response. This marks the lowest possible score on the GCS.

In contrast, the other scores indicate varying levels of responsiveness. For example, a score of 6 suggests some degree of responsiveness in at least one of the criteria. Since the GCS is structured so that a higher score reflects better neurological function, a score of 1 confirms the absence of responsiveness entirely, solidifying it as the least responsive score among the presented options.