The document discusses the history and evolution of perioperative nursing from the late 19th century to present day. It outlines key events like the introduction of the operating room team concept in 1894 and the establishment of the Association of Operating Room Nurses in 1949. The roles and responsibilities of perioperative nurses are described, including preparing patients for surgery, maintaining a sterile environment, and advocating for patient safety. Infection control practices and environmental sanitation protocols are also summarized.