Assessment of the level of anesthesia measuring Entropy in the EEG Table 1.1: Entropy values in clinical use [10] RE SE The patient's condition 100 90 Fully awakening 60 40 60 40 Deep enough in clinical anesthesia 20 20 Flared - extinguished images in EEG 0 0 Loss of cortical electrical activity 1.1.3.2.