How long should the nurse clamp the drainage tubing before obtaining a urine culture?

• A. 10 minutes
• B. 15 minutes
• C. 20 minutes
• D. 30 minutes

Answer: (B)

The recommended practice for obtaining a urine culture is to clamp the drainage tubing for a specific duration, which ensures that a sufficient volume of urine accumulates in the bladder, allowing for a more accurate representation of the urine for culture purposes. Clamping for 15 minutes is typically considered the standard time interval.

This duration strikes a balance between allowing enough urine to fill the bladder and preventing any potential for bacterial growth or contamination that might occur with a longer time frame. By adhering to this time, the nurse can collect a urine sample that is more likely to yield reliable results, thus ensuring that any bacteria present are accurately identified and that the diagnosis and subsequent treatment can be effectively managed.