Final answer:
Preoperative instructions are canceled upon entering the operating room to avoid confusion. Prophylactic antibiotics should be administered within 60 minutes before an incision if required, and all relevant imaging should be available in the operating room.
Step-by-step explanation:
All ordered written preoperative instructions are generally considered canceled once the patient is taken into the operating room for surgery. This is a precaution to prevent any potential confusion or errors regarding the patient's care. When it comes to specific preoperative procedures such as the administration of prophylactic antibiotics, it's standard for these to be administered within 60 minutes before the surgical incision is made, unless antibiotics are not indicated for the procedure. Additionally, it is important that all essential imaging results for the correct patient are displayed in the operating room for reference by the surgical team. These practices help ensure patient safety and the overall success of the surgery.