Wipe the forehead with alcohol and dry with gauze. Either side of the head can be used except in the case of stroke were you would use the unaffected side. Electrode # 1 is placed in the center of the forehead 1.5 inches above the bridge of the nose Next electrode # 4 is placed directly above the eyebrow Place electrode #3 on the temple between the outer canthus of the eye and the hairline Now electrode #2 will be in the proper position to be secured.
General anesthesia associated with no awareness under anesthesia occurs from BIS values of 40-60. Deep Sedation occurs with BIS Values of 60-80 In special needs patients work around 80-90 for sedation.