What nursing intervention should be performed for a client experiencing skin irritation from the edges of a cast?

Petaling the cast edges involves rounding off the sharp edges or using appropriate padding materials to prevent irritation and skin damage. This technique helps to create a smoother transition between the cast and the skin, reducing friction and pressure points that can lead to skin irritation. By using materials like soft foam or tape, the caregiver can effectively guard against further skin irritation while maintaining the integrity of the cast.

The other options are less appropriate in this scenario. While using a topical cream may provide temporary relief, it does not address the underlying cause of the irritation, which is the sharp cast edges. Removing the cast may provide immediate relief but is not advisable without medical consultation because it may compromise the healing process. Applying gauze around the cast edges could potentially shift or bunch up over time, leading to additional discomfort or irritation rather than providing a long-term solution. Therefore, petaling the cast edges is the most effective intervention to protect the skin while allowing the cast to remain functional.