<prompt> EEG in anesthesia is useful in:Depth of general anesthesiaDepth of local anesthesiaDepth of neuromuscular blockDepth of analgesia  <response>: Ans. a. Depth of general anesthesia Ref: Morgan 4144-146; Lees 12e p146, 286, 447EEG in anesthesia is useful in monitoring the depth of anesthesia GA with 16-lead.Uses of EEG in anesthesiaTo assess the sedation and awarenessQTo monitor epileptic activityQ, and to control antiepileptic drugs infusion, especially in paralyzed patientsTo monitor the changes in conscious levelsQDuring cerebrovascular surgery, to confirm the adequacy of cerebral oxygenationQMonitoring the depth of anesthesiaQ GA with 16-leadHave look on some new and important techniques.Bispectral Index Scale BISIt is based on the principle of EEGQIt uses 3 EEG electrodes placed on frontal, parietal and temporal lobesQBIS is used to monitor:Intraoperative awarenessQDepth of anesthesiaQIts value ranges from 0-100 0: coma: 100: awakeTarget intra-operative BIS: 40-60QTarget sedation BIS: 60-80QEntropyIt is based on the principle of EEG and EMGQ 