Final answer:
Using a simple magic trick with gauze can help the nurse establish rapport with a 5-year-old child during a dressing change.
Step-by-step explanation:
The action of the nurse using a simple magic trick with gauze to engage a 5-year-old child during a dressing change should be interpreted as a way to establish rapport. By incorporating a fun and interactive element, the nurse can create a positive and friendly environment that encourages cooperation from the child. This can help alleviate the child's anxiety or fear and make the dressing change process smoother.