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?

While all of the options address the issue of impaired mobility related to fear of falling, the desired outcome of ambulating with assistance q4 hours is the most specific and measurable goal. This outcome focuses on promoting mobility and addressing the client's fear of falling by providing the necessary assistance during ambulation. It ensures that the client is engaging in regular activity and working towards regaining mobility. The other options address different aspects of the nursing problem: A. "The client will use self-affirmation statements to decrease fear" is a potential intervention that can be used to address the client's fear of falling, but it does not directly address the issue of impaired mobility. C. "The physical therapist will instruct the client in the use of a walker" is an intervention that can be helpful in improving mobility, but it does not specify the frequency or timing of ambulation. D. "The PN will place a gait belt on the client prior to ambulation" is a specific intervention that ensures the safety of the client during ambulation, but it does not address the frequency or timing of ambulation.