A nurse is supervising an assistive personnel (AP) who is caring for a client who has an indwelling urinary catheter. Which of the following actions taken by the AP indicates proper technique?

The drainage bag should be emptied when it is one-half to two-thirds full to prevent backflow of urine and reduce infection risk. Sterile gloves are not required to empty the drainage bag — clean gloves are sufficient. The catheter should never be disconnected from the drainage bag, as this breaks the closed system and introduces infection risk. The drainage bag must always be kept below the level of the bladder (below waist) to prevent backflow.