The nurse is explaining to a patient the procedure to alleviate pressure on a ca

The nurse is explaining to a patient the procedure to alleviate pressure on a casted extremity. Which of the following should the nurse explain to this patient?
1. “This procedure is called bi-valving. The doctor will use a cast saw to split the cast down both sides in order to prevent pressure on your leg.”
2. “This procedure is called an external fixation device and will help the bone heal.”
3. “This procedure is called an open reduction with internal fixation to help the bone fuse together.”
4. “This procedure will help heal your leg faster so that the cast can come off sooner.”