A nurse is caring for a client who has an indwelling urinary catheter and reports urinary leakage. Which of the following actions should the nurse take to verify the safe functioning of the urinary catheter?

Check for seals in the drainage system.

Place a waterproof pad under the client's buttocks.

Clip the drainage tubing to the edge of the mattress.

Position the drainage bag below the level of the client's bladder.