Abstract
Older adult patients (age ≥ 65 years) frequently present to the emergency department with dyspnea, and the most common cause is pulmonary disease. Clinical presentation, examination findings, and existing diagnostic tests can be affected by the pathophysiological changes associated with aging and other comorbidities. As a result, to provide the highest quality care to older adult patients with pulmonary disease, physicians should understand these changes and their implications.