[Physical diagnosis--the Glasgow coma scale for the measurement of disturbances of consciousness].

The Glasgow coma scale (GCS) may be used for the evaluation of disturbances of consciousness. The GCS is a reliable and reproducible test that can easily be carried out at the patient's bedside. The GCS can be used to assess the severity of a head injury and to determine the prognosis of the patient. The prerequisites for a reliable determination of the GCS-score are training of inexperienced personnel, re-assessment by a physician with experience in neurology, correction for external factors and reporting in accordance with a protocol.