How often should a continent urinary diversion be catheterized?

• A. Q1-2 hrs
• B. Q4-6 hrs
• C. Q8-12 hrs
• D. Q12-24 hrs

Answer: (B)

The idea being tested is that a continent urinary reservoir needs regular emptying to prevent overdistention and maintain continence. Because the reservoir collects urine produced by the kidneys and fluid intake varies, it’s important to drain it at manageable intervals rather than letting it fill too long or too often. The recommended schedule is every 4–6 hours, which typically results in about 4–6 catheterizations per day. Catheterizing more often (every 1–2 hours) isn’t necessary and adds burden, while waiting longer (8–12 or 12–24 hours) risks overdistention, leakage, and potential kidney impact. Some patients may adjust slightly based on intake and activity, and may need a nocturnal catheterization if urine production is high at night, but the standard practice is 4–6 hours during the day.