An older postoperative client has the nursing problem, "Impaired mobility related to fear of falling." Which desired outcome best directs the practical nurse's (PN) actions for this client?

The client will use self-affirmation statements to decrease fear.

The client will ambulate with assistance for q4 hours.

The physical therapist will instruct the client in the use of a walker.

The PN will place a gait belt on the client prior to ambulation.