The bone conduction responses are shown below. Bone conduction transducers create very large electronic artifacts, and the location of the oscillator at the mastoid is also problematic.   Notice that the first ~5 ms of the trace are omitted. The stimulus artifact is so large during that time (when the stimulus itself is on), that it would be extremely large and visually distracting.  The bone oscillator continues to “ring” after the tone has turned off, so you are seeing remaining stimulus artifact.

• Do you have all the information needed to manage the case?  If not, what else would you want to see or what would you do differently?  (Consider what’s necessary, not what “might be nice” – the child is under IV sedation, and you don’t want the child sedated longer than necessary.)