During a transurethral resection of the prostate, a triple-lumen catheter is used for irrigation. Which statement correctly describes one function of the lumens?

• A. Continuous inflow and outflow of irrigation solution.
• B. Intermittent inflow and continuous outflow of irrigation solution.
• C. Continuous inflow and intermittent outflow of irrigation solution.
• D. Intermittent flow of irrigation solution and prevention of hemorrhage.

Answer: (A)

During TURP, the catheter’s lumens are arranged to keep the surgical field clear with constant irrigation. One lumen continuously delivers irrigation solution into the bladder, while a separate lumen continuously drains the bladder contents and the returning irrigation fluid out to a collection bag. A third lumen inflates a retention balloon to hold the catheter in place. This setup—continuous inflow paired with continuous outflow—maintains visibility by flushing blood and tissue debris and preventing clogging, which is essential for safe and effective resection. The idea of intermittent flow or a primary aim to prevent hemorrhage by the lumens themselves doesn’t fit how this catheter is designed to function.