The document discusses preoperative, intraoperative, and postoperative care for surgical patients. The preoperative phase includes assessing the patient's medical history and preparing them for surgery. Intraoperatively, the surgical team provides anesthesia and monitors the patient's vital signs. Postoperatively, patients are recovered in the PACU and nurses focus on respiratory, cardiovascular and other body functions as well as wound healing. Potential postoperative complications like pneumonia, hemorrhage, and infection are also outlined.