Which of the following catheters would require a drainage bag during a surgical procedure?

The Foley catheter is a type of indwelling catheter that is designed to be placed in the bladder for continuous urine drainage. During surgical procedures, it is important to monitor urine output, and a drainage bag is necessary to collect the urine that is continuously produced. This allows for easy assessment of fluid balance and renal function during and after surgery.

In contrast, a Jackson-Pratt catheter is typically used for drainage of fluid collections or cavities but is not specifically used for urine. The Nelaton catheter is a straight catheter used for intermittent drainage, which does not require a drainage bag since it is removed after each use. Intermittent catheters are used for catheterization at intervals and also do not necessitate a drainage bag, as they are not designed to remain in place for extended periods like a Foley catheter.