Which of the following nursing diagnoses might be appropriate as Parkinson's disease progresses and complications develop?

The correct answer is 'Impaired Physical Mobility.' As Parkinson's disease progresses, clients may experience a shuffling gait and rigidity, leading to impaired physical mobility. This nursing diagnosis is relevant to address the functional limitations that may arise. 'Dysreflexia' is not typically associated with Parkinson's disease but rather with spinal cord injuries. 'Hypothermia' is a condition of abnormally low body temperature and is not a common complication of Parkinson's disease. 'Impaired Dentition' refers to dental issues and is not directly related to the progression of Parkinson's disease.