RT Book, Section A1 Adimi, Nima A1 Battu, Rohini A1 Lee, Neil A2 Freeman, Brian S. A2 Berger, Jeffrey S. SR Print(0) ID 1102568545 T1 Postoperative Respiratory Complications T2 Anesthesiology Core Review: Part One Basic Exam YR 2014 FD 2014 PB McGraw-Hill Education PP New York, NY SN 9780071821377 LK accessanesthesiology.mhmedical.com/content.aspx?aid=1102568545 RD 2024/10/04 AB Postoperative pulmonary complications are the second most common complication, following nausea and vomiting, in the postanesthesia care unit (PACU). Anesthetic, surgical, and patient factors contribute to the likelihood of pulmonary complications. Hypoxia in the PACU can be divided into two categories: hypoventilation with a low PAO2, or impaired O2 exchange with a decreased alveolar-arterial gradient.