Surprise he suggested I may have complex sleep apnea and require a machine with ASV to handle the central or clear airway apneas.
It's a good thing the DME could not find the S9 Autoset I got approved. For a change their clumsiness may have worked to my my advantage.
He suggested a new titration Sleep study to determine exactly what I need and at what settings.
Other than cost what is the downside to changing my current approval from S9 Autoset to S9 ASV, before the titration study?