Fig. 2.

POUR-800 ml algorithm. Caveats: in case of >1000 ml fluid per hour and/or diuretics, perform bladder scan hourly or place a CAD. Flowchart does not apply to patients with known bladder pathology, small bladder, <50 kg bodyweight, or >160 cm height. Symptoms include urge, lower abdominal pain, confusion, and tension over the bladder. Cause: explore other reasons for symptoms, for example, hematoma, urethral irritation, etc. Patients were always encouraged to urinate before SIC or CAD. CAD = catheter a’ demeure; PACU = postanesthesia care unit; POUR = postoperative urinary retention; SIC = sterile intermittent catheterization.