The precautions for the first catheterization of urinary retention are aseptic operation, use of lubricants, intermittent release of urine, and fixation of the urinary catheter, which should be operated by professional medical personnel.
1. Aseptic operation: catheterization should be strictly aseptic to avoid causing urinary tract infection, but also pay attention to gentle action to avoid damage to the urethral mucosa.
2. The use of lubricants: the insertion of the urinary catheter can be sufficient to use lubricants to reduce the damage of the urinary catheter to the urethral mucosa.
3. Intermittent release of urine: After successful intubation, the urine should be released slowly and intermittently, first release 200ml and then clamp the urinary catheter closed, and then release 200ml of urine after 20-30 minutes, which can be repeated many times until the bladder is emptied, in order to avoid bleeding of the bladder due to the rapid emptying of the bladder and the sudden drop of pressure.
4. Fix the urinary catheter: After emptying the bladder for the first time, the urinary catheter should be fixed properly and avoid pulling, and make sure to drink enough water every day to exercise the function of the bladder muscle.