Final answer:
The nurse should ensure that the ice pack is changed frequently to ensure that the client gets the optimum benefits of the procedure. Applying ice packs directly to the perineal area for 20 minutes at a time, at regular intervals, is the recommended method.
Step-by-step explanation:
The nurse should ensure that the ice pack is changed frequently to ensure that the client gets the optimum benefits of the procedure. This is because frequent changing of the ice pack helps to maintain a consistent cooling effect and prevent any discomfort or potential harm to the perineal area. Applying ice packs directly to the perineal area for 20 minutes at a time, at regular intervals, is the recommended method. This allows for adequate cooling and reduces the risk of frostbite or skin damage. Therefore, option C- Ensure ice pack is changed frequently, is the correct intervention to ensure that the client gets the optimum benefits.