What is the primary function of a surgical drape?

The primary function of a surgical drape is to create a sterile barrier around the surgical site. This is essential in preventing contamination during surgical procedures, which can lead to infections and complications. Surgical drapes are designed to maintain sterility and protect both the surgical field and the patient from pathogens. They are typically made of materials that can either be disposed of after use or are designed for sterilization and reuse, ensuring a safe and hygienic environment during surgery.

While some aspects of the other options might be relevant in certain contexts, they do not address the primary purpose of surgical drapes as effectively as the creation of a sterile barrier. Absorbing excess fluids, providing warmth, or displaying instruments are secondary concerns or functions that do not align with the main role of ensuring sterility and preventing infection in the surgical setting.