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

Keeping the drainage bag above waist level.

Disconnecting the catheter from the drainage bag to empty the bag.

Emptying the drainage bag when it is three-quarters full.

Using sterile gloves when emptying the drainage bag.