Private endoscopy clinic, experiences?

Okay, so I went to montreal to get my endoscopy to get it done in time.  

I asked for a detailed bill, it was 375.00. The endoscopy itself was free the charges were for IV meds and staff.

I have no issues paying for the staff, but I did not get an IV.  

I've had 2 endoscopes before while awake so felt no need to go under get general anesthesia this time. 

Anyone dealt salt with this in the private sector?