The development of pneumonia and other infections from intubation in the intraoperative setting has not been well-studied. An understanding of the content of the fluid that accumulates above the cuff in this setting will further strengthen the relationship between intubation and infection. The purpose of this study is to characterize the content of fluid extracted from the endotracheal tube cuff during surgery. This study will also evaluate the content of the fluid across various intervals of suctioning.