Eight hours following an open inguinal hernia repair under spinal anesthesia, a 55-year-old man reports lower abdominal discomfort and an inability to pass urine. His vital signs are stable. Physical examination demonstrates a palpable suprapubic mass with dullness to percussion. Arrange the following steps in the most appropriate chronological sequence for the management of this patient's postoperative complication.
- 1Perform a bedside bladder ultrasound
- 2Perform a one-time straight urethral catheterization
- 3Observe the patient for spontaneous voiding
- 4Place a continuous indwelling urethral catheter
Answer
The correct sequence is to first perform a bedside bladder ultrasound, followed by a one-time straight urethral catheterization, then observe the patient for spontaneous voiding, and finally place a continuous indwelling urethral catheter if retention recurs.
Postoperative urinary retention is a common complication following regional anesthesia. The management algorithm dictates starting with the least invasive diagnostic modality (bladder ultrasound) to confirm the diagnosis. Once retention is confirmed (typically >400-500 mL), immediate decompression is achieved via a temporary straight catheterization to minimize the risk of a urinary tract infection. The patient is then observed to determine if normal detrusor function resumes. A continuous indwelling catheter is only utilized if the patient develops recurrent retention despite the initial decompression.
Step-by-Step Solution
Key Concept
Stepwise management of postoperative urinary retention (POUR)