Final answer:
A nursing diagnosis of Impaired physical mobility is most appropriate for a patient who is not completely immobile, as they face significant mobility challenges. Conditions like malnutrition and arthritis can contribute to these impairments.
Step-by-step explanation:
The nursing diagnosis of Impaired physical mobility is selected for a care plan when a patient's ability to move independently is limited. In the context of the choices provided, the most appropriate patient for this diagnosis would be a patient who is not completely immobile. This is because a completely immobile patient would have different care needs that go beyond impaired mobility, while patients who are not completely immobile still retain some level of movement but face significant challenges that require nursing interventions to prevent further disability and to enhance their level of function.
Injury or disease affecting the musculoskeletal system can lead to impaired mobility, with malnutrition and arthritis being common underlying causes. Treatment strategies may include physical therapy and, in severe cases, joint replacement surgery to restore function.