Preoperative pulmonary function studies, including room air arterial blood gases, are suggested for patients with a history of symptomatic COPD, long-standing tobacco use, or inability to climb one flight of stairs (Grade 2, Level C).

Smoking cessation for at least two weeks prior to aneurysm repair can be beneficial (Grade 1, Level C).

Administration of pulmonary bronchodilators for at least two weeks prior to aneurysm repair is recommended for patients with a history of symptomatic COPD or abnormal pulmonary function studies (Grade 1, Level C).