ABSTRACT
Why does the Glasgow Coma Scale work better than other scales, includ ing a linear system? The key to its effectiveness is simplicity, with the added benefit that each of the components of consciousness is evaluated in three clear subscales. Once learned, it is easy to remember. Once forgotten, it is easy to relearn. Criticisms of the GCS are that,
1. A verbal response cannot be scored in an intubated patient, 2. Eye-opening is difficult to assess in the trauma patient with severe
periorbital edema, 3. If drugs are used to intubate the patient, or for other reasons, the
scoring system is inaccurate, and 4. The system is imprecise if hypotension is profound.
