Trey, an 18-Year-Old Soccer Player, Is in the ER Because

Trey, an 18-year-old soccer player, is in the ER because he injured his knee during tonight's soccer game. The ER physician has ordered an arthrogram of the knee. Which of these statements would you include in your patient teaching to prepare Trey for the arthrography?

A) "The procedure will take 15 minutes."
B) "You will need to lie very still during the procedure."
C) "There will be no need to inject contrast medium into the knee."
D) "The procedure will be done under general anesthesia."
E) "There may be swelling or pain in the joint for 1 or 2 days."