The patients will be transferred to the recovery room for monitoring for 30 minutes. The vital signs (blood pressure, pulse, RR and SpO2, and OAA/S) will be continued every 5 min. When the patients are fully recovered, they will be asked if there is any pain and discomfort and their severity will be assessed as NRSpain and NRSdiscomfort during the procedure. Discomfort is defined as 'a feeling of uneasiness that interfered with the patient's ability to relax'. They will also be asked if they remember any of the following events: the pictures shown to them, the insertion of the endoscope, the discomfort and pain during the examination.