Final answer:
The nurse should pour the sterile solution from about 5 inches above the receiving container to prevent contamination and avoid splashes. The bottle should be angled and the opening may be flamed. Discard unused solution and place caps carefully to maintain a sterile environment.
Step-by-step explanation:
The best technique for a nurse adding a sterile solution onto a prepared sterile field is to pour the sterile solution from a height that minimizes the risk of contamination but also avoids splashing, which is typically about 5 inches (13 cm) above the receiving container. The bottle should be held at an angle to reduce the entry of airborne contaminants. The bottle's opening can also be passed through a flame to minimize contamination, though it may not be practical or required in all settings. After pouring, unused sterile solution should be discarded to maintain sterility. When setting down the cap, it should be placed with the edges down on a sterile surface to avoid contamination.