| Survey    questions | 
      
      
        | Do you use    breathing exercises with PEP in the postoperative care after abdominal    surgery? | 
      
      
        | What is your    reason for initiating breathing exercises with PEP?  | 
      
      
        | What kind of    PEP device do you usually use in the daily postoperative care?  | 
      
      
        | What is your    reason for choosing a specific PEP device? | 
      
      
        | On what    indications do you choose to start breathing exercises with PEP? | 
      
      
        | How many times    a day is the patient instructed to perform the breathing exercises? | 
      
      
        | How many    repetitions (breaths) are the patient instructed to perform at each time?  | 
      
      
        | In your    opinion, are there scientific evidence and/or proven experience supporting    the use of breathing exercises with PEP after abdominal surgery? |