Thanks for your comments, Bernard.
The main reason I posted in the first place was the fact that my training monitor doesn't auscultate at all!!
I talked to some other physios and realized that this isn't the rule at this hospital. I guess one doesn't account for all of them.
I believe the reason for this is the fact that my monitor has a special interest in neurology, and was temporarily placed on a nursery because of the amount of babies with respiratory pathology this time of the year.