Stella is preparing a sterile tray for a dressing change. While preparing the tray, a nurse calls her name, and she turns her back on the tray for a few minutes. What should Stella do next?

Stella would have to create a new sterile tray.

Explanation:

Since Stella was distracted by her name she heard she would of to create another sterile tray because while preparing a tray, the sterile tray must be in sight throughout the whole procedure of preparation, never turn your back on the sterile tray because the sterility cannot no longer be guaranteed if the back is turn on it because anything might have happen or particles or airborne microbes might have flown into it which can render it . non sterile. Sterile tray should be set close or at the time of use.