Mayo tray is described as

• A. A disposable metal tray
• B. A broad flat metal tray placed on a stand and used to hold sterile instruments and supplies when it has been covered with a sterile towel
• C. A small glass dish for liquids
• D. A wooden tray used for patient meals

Answer: (B)

In sterile field setup, the Mayo tray is a broad flat metal tray that sits on a Mayo stand and holds sterile instruments and supplies. It’s kept sterile by covering it with a sterile towel so items remain ready and uncontaminated during the procedure. This description matches the option that emphasizes a metal tray on a stand used for sterile instruments and supplies, covered with a sterile towel. It isn’t a disposable tray, a small glass dish for liquids, or a wooden meal tray, which are not used for maintaining a sterile field.