IRCT2016050914802N3 IRCT 2016-07-01 Vice-Chancellor for Research and Technology of Ahvaz Jundishapur University of Medical Sciences Observing the principles of the Clinical audit on doing of urinary catheterization Observing the principles of the clinical audit on doing of urinary catheterization in patients referring to the general operating room of Imam Khomeini (RA) hospital 2015-07-23 anticipated 100 Complete https://irct.ir/trial/14310 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Supportive. N/A infection urinary. Intervention 1: Intervention group: In the first, clinical audit includes assessment of catheterization skills, compare to the standards, extract weaknesses for a month in the operating room by researcher will be done. Then face to face training regarding the standards of catheterization, for 45 minutes will be given to all under study personnel and during next month, re-evaluation skills of catheterization will be done. Intervention 2: Control group: In the control group, Assessment of catheterization procedure skill, comparison of current situation with standards, identifying weaknesses, and reassessment of catheterization procedure skill through observation and Check list will be recorded without any intervention at the two months.