The patient's plan of care includes using the continuous passive motion (CPM) machine. Which statement indicates the patient needs for further teaching?

"I can make my new knee stronger if I reset this thing to go faster and flex my knee more.

"I marched in the Marines for 20 years, and now I'm marching flat on my back?"

"I almost wish this CPM ran at night. The motor noise is soothing"

"My new knee will be glad to rest at night."